300 blackout powder

The following chart shows the usable interior case volume of all popular rifle cartridges, measured in cubic inches and assuming a standard .013″ brass thickness. By “usable case capacity,” I mean the internal area of the body of the case and shoulder, but none of the neck. This would be the space occupied by powder in the case of a flat ...

Check out the best powders for 300 Blackout ammo below. At a Glance: Our Top Picks for Powder For 300 Blackout. OUR TOP PICK: CFE BLK Smokeless Rifle Powder. RUNNER-UP: Alliant Powder - Power Pro 300-mp Powder. BEST BUDGET OPTION: Hodgdon H110 Powder.Check out the best powders for 300 Blackout ammo below. At a Glance: Our Top Picks for Powder For 300 Blackout. OUR TOP PICK: CFE BLK Smokeless Rifle Powder. RUNNER-UP: Alliant Powder - Power Pro 300-mp Powder. BEST BUDGET OPTION: Hodgdon H110 Powder. See more The Bottom Line on 300 Blackout Ammo. The 300 Blackout is a rifle cartridge that’s more powerful than the 5.56 when fired out of a barrel that’s less than 16 inches long. The chief advantage of 300 Blackout is its versatility. You won’t find a cartridge that “does it all” better than the 300 Blackout. Aug 30, 2021 · Lil’ Gun was designed to fit, meter and perform flawlessly in the 410-bore. No more spilled shot or bulged cases. In addition, Lil’ Gun has many magnum pistol applications and is a superb choice for reloading the 22 Hornet. Made in the USA. Available in 1 lb., 4 lb. and 8 lb. containers. The 300 AAC Blackout delivers ballistic performance comparable to 7.62×39, yet possesses a base diameter that optimizes functionality in an AR-type platform. It is cross-compatible with 223 Rem/5.56×45 magazines. The 300 Blackout’s .30 caliber bullet can be made especially long, and as the result may weigh up to 220 grains — quadruple the ...Substitute Products. Missouri Bullet Company Cast Lead Bullets 300 AAC Blackout (309 Diameter) 245 Grain Hi-Tek Coated Round Nose Flat Point Box of 250. $64.99. Add to Cart. Missouri Bullet Company Cast Lead Bullets 30-30 Winchester (309 Diameter) 165 Grain Hi-Tek Coated Round Nose Flat Point Box of 250. 4 Reviews.The .300 AAC Blackout also burns powder faster than its .30 caliber siblings. You can also easily suppress a rifle that shoots this round to gain even more advantage. In terms of recoil, you’ll experience about 9 pounds to the shoulder. When it comes to penetration, this caliber performs well.

This powder is one of the favorites for hunting and varminting loads. Recommended by our pros. N110 will work in many calibers but one of our favorites to try is the .300 Blackout, both Subsonic and Supersonic loads. Vihtavuori N110 rifle powder is available in containers of 1 lbs, 1 kg and 3,5 kg containers, and in the US also in 8 lbs canisters.Data like Hodgdon, is problematic because the “subsonic data” is not related to pressure, Max load is capped at 1050 fps. Most 300 Blackout data is geared toward AR’s and powder that will cycle the action. This leaves about 20 good powders used in something hand fed off the table. Look for 300 whisper data.300 Blackout cast load data. I am just getting started with the 300 Blackout. There is very little data available for this cartridge and I cant find any data for cast loads. I think there is several members here that shoot the 300 blackout and I was hoping some of y'all would share some cast load data. I will be starting with boolits ranging ...How is powdered activated carbon used? Keep reading to learn about powdered activated carbon and how it is used. Advertisement The use of activated carbon is pretty straightforward...Gauge/Holder 300 AAC Blackout Lee Precision Gauge/Holder 300 AAC Blackout, Silver, Small. 4.7 out of 5 stars. 434. Small Business. Small Business. Shop products from small business brands sold in Amazon’s store. Discover more about the small businesses partnering with Amazon and Amazon’s commitment to empowering them.3,470. Location. North Texas. Mar 16, 2022. #6. Not sure about temp sensitivity since the 300 blackout typically uses pistol powder. I use Alliant 300MP in mine and get phenomenal accuracy and velocity from an 8" SBR. I run the 110 Barnes TAC-TX at 2315fps from my 8"'barrel. The below plate was shot at 300 yards..300 Whisper / .300 AAC Blackout / .300 Blackout (Using 110 GR Hornady Bullets) reloading data with 23 loads. Using bullets from Hornady V-Max, FMJ, RN or SP. Powders include Accurate, Alliant, Vihtavuori, Hodgdon, Winchester

Jul 19, 2022 · The .300 BLK has easily been the most successful new caliber in the last 20 years. Besides the easy conversion between 5.56 and .300 BLK, the .300 BLK does a lot the 5.56 can’t. First off, it’s a very versatile load with projectiles weights ranging from 110 grains to 220 grains. (L to R) 5.56 NATO, .300 BLK, .30 Carbine. Concord, NH. May 24, 2023. #1. Built a 16" 300blk bolt gun with a Wilson barrel. Figured I would start a thread here to share the load data journey. With the limited data on N110, I did a quick test to see where the limits of the charge would be using Hoosier 220gr lead powder coated bullets and Noslers 175 Custom Comps. I shot 6 loads of each.CFE Pistol was NOT made for the 300 Blackout. It's a faster burning Pistol powder. Hodgdon CFE BLK was made for the 300 Blackout. The "CFE" in the names only refers to "Copper Fouling Eraser"elements being in the powder. You're gonna put your eye out! Don't mess around if you don't know WTF you're doing.12/08/2023 1:25 pm. Rifle Dies. We do not have a standard product powder through expanding die for the 300 AAC Blackout. These dies are not designed for the bottleneck style of case. Here is a list of parts that can be ordered to put a die together that can be used with the 300 AAC Blackout: SE2398 357 MAG Powder Through/Expanding Die …

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The 300 Blackout proved to be an insanely enticing development when it hit the market a decade ago. The capability to quickly convert your AR-15 from a .22 caliber to a .30 caliber with just changing the barrel was amazing. ... This slight increase in powder is capable of giving the 300 HAMR an edge over the 300 blk, but we’ll elaborate on ...What do you do if a recipe calls for baking soda but you only have baking powder, or if you have baking soda but not baking powder? As it turns out, there are options. You can make...Mar 2, 2022 · 3,470. Location. North Texas. Mar 16, 2022. #6. Not sure about temp sensitivity since the 300 blackout typically uses pistol powder. I use Alliant 300MP in mine and get phenomenal accuracy and velocity from an 8" SBR. I run the 110 Barnes TAC-TX at 2315fps from my 8"'barrel. The below plate was shot at 300 yards. Product – 300 BLK admin 2021-04-27T07:51:30+00:00 300 BLK 144gr AM FMJ Everything from the propellant, brass case and 144gr FMJ bullet of this 300BLK round is made in Australia, by Australians, to deliver an outstandingly accurate low cost round for high volume shooting at the range or in competitions.

The best barrel length for a suppressed 300 Blackout is between 8 to 10 inches. At 10", the muzzle velocity hasn't reached its peak yet. Heavy subsonic 300 Blackout ammo in a 10" barrel may have lower velocities, but it allows for the use of a suppressor without damaging your hearing. Supersonic ammo out of a 10" barrel retains …AR15/M4/M16 Compatibility. In 2009 the 300 Whisper / 300 ACC became the .300 Blackout (headstamped .300 BLK). This cartridge was much straighter than the 7.62×39, and the same overall length as the 5.56×45 …300 Blackout cast load data. I am just getting started with the 300 Blackout. There is very little data available for this cartridge and I cant find any data for cast loads. I think there is several members here that shoot the 300 blackout and I was hoping some of y'all would share some cast load data. I will be starting with boolits ranging ...1 Dec 2023 ... powder on the shelf or in the book, but what exactly is it best for? This time I'm taking a closer look at Hodgdon's CFE BLK, a powder I've ...13 Feb 2024 ... Testing h110 and lil gun powders in 300 blackout https://www.vedderholsters.com https://www.targetsportsusa.com/t-ammoplus.aspx Infinity ... This new spherical propellant was designed expressly for the 300 Remington AAC Blackout cartridge. It provides full function of AR type rifles throughout the range of bullet weights, and is perfect for those sub-sonic reduced loads. In addition to being outstanding in the 300 Blackout, it performs beautifully in many smaller capacity cartridges, in particular, […] Concord, NH. May 24, 2023. #1. Built a 16" 300blk bolt gun with a Wilson barrel. Figured I would start a thread here to share the load data journey. With the limited data on N110, I did a quick test to see where the limits of the charge would be using Hoosier 220gr lead powder coated bullets and Noslers 175 Custom Comps. I shot 6 loads of each.Apr 13, 2017 · The 300 BLK shoots .308 caliber bullets. 3. Suppressor-Friendly: You can shoot heavier bullets subsonic. The subsonic capabilities of the 300 BLK make it ideal for use with a suppressed AR. 4. Great Barrel Life: With a .30-caliber bore and a modest powder charge, barrel life is outstanding. 5. Check out the best powders for 300 Blackout ammo below. At a Glance: Our Top Picks for Powder For 300 Blackout. OUR TOP PICK: CFE BLK Smokeless Rifle Powder. RUNNER-UP: Alliant Powder - Power Pro 300-mp Powder. BEST BUDGET OPTION: Hodgdon H110 Powder. See more7 Jul 2016 ... AP2020 Merchandise https://ballisticink.com/collections/all/patriot-partner_ap2020-outdoors PLEASE SUPPORT AP2020 and Check out These ...

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I've got a range of powders sitting on my bench, and none of them are in my recipe book for 300 Blackout loads, so I'm going to need to buy something new. I figured I could get some recommendations that might steer me in the right direction before going out and dropping $30-$35 on a pound of powder that I don't like how it meters, or performs.May 12, 2023 · While Hodgdon H110 is a high-performance powder, it can be difficult to work with due to its high pressure and burn rate. Careful attention must be paid to load development and case preparation to ensure safe and reliable performance. 2. Accurate 1680 Powder for 300 blackout. Check out the best powders for 300 Blackout ammo below. At a Glance: Our Top Picks for Powder For 300 Blackout. OUR TOP PICK: CFE BLK Smokeless Rifle Powder. RUNNER-UP: Alliant Powder - Power Pro 300-mp Powder. BEST BUDGET OPTION: Hodgdon H110 Powder. See moreFeb 9, 2024 · Discover the best 300 Blackout powders for precision and power. Explore top-rated powders like CFE BLK, Alliant Powder, Hodgdon H110, and... I built a Blackout, 10.5 inch barrel, specifically to shoot suppressed with subsonic loads. Bought an 8 lb jug of 1680 powder before the gun was built. Fast forward, built the gun and a form 1 can and started working up loads. Found lighter loads left lots of unburned powder. Cleaner burning loads were louder than I thought they should be.Aug 18, 2020 · Posted by Alice Jones Webb on Aug 18th 2020. .300 AAC Blackout is hands-down, one of the coolest alternative AR-15 cartridges on the market today. This wicked cartridge is more than capable of dropping whitetails at 100 yards and ringing steel targets farther than that. And when you use subsonic ammo, the loudest sound you’ll hear is the ... Printed from Shooter's Reference on 05/15/2024: https://www.shootersreference.com/reloadingdata/300-aac-blackout/ Most factory .300 Blackout subsonic loads are a little more powerful than a routine .45 ACP handgun loading, if we’re going on (the admittedly incomplete) calculated energy figures. So, if you think .45 ACP is a reliable choice for a defensive round, subsonic Blackout beats it. ... The biggest problem I found was the amount of unburnt powder ...

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Performance Characteristics: 300 Blackout vs 308 Win. Once you’ve decided which rifle action you’ll be using, this is really where the differences between the two cartridges become apparent. The 308 is a medium-sized rifle cartridge with a powder charge somewhere around 36 to 46 grains with a typical 150-grain bullet.It is a low bulk density powder that fills the cartridge case very well. It is also a very clean burning powder. Its burn rate is right between N320 and N330. Also can be used with the 300 AAC BLACKOUT with BERGER .30 CAL 115 to 230 grain bullets. (Call for data)Weather was 27 deg F - I believe the fps will pick up a bit in the summertime. Chime in if you've got experience on how much the fps will rise due to temps. Weapon - 300 blk 9" barrel with a suppressor. A1680/Hornady 190 gr sub-x. 11.5 gr / 1021 ave fps. 12.0 gr / 1107 ave fps. CFE BLK. 12.0 gr / 1028 ave fps. 12.5 gr / 1052 ave fps.Data like Hodgdon, is problematic because the “subsonic data” is not related to pressure, Max load is capped at 1050 fps. Most 300 Blackout data is geared toward AR’s and powder that will cycle the action. This leaves about 20 good powders used in something hand fed off the table. Look for 300 whisper data.Shooters World Rifle Powders CALIBERS Cowboy* SOCOM Blackout Tactical RifleMatch Rifle 22 Hornet 222 Remington 223 Remington 243 Winchester 270 Winchester 7mm Remington Mag. 300 AAC Blackout 30-30 Winchester.308 Winchester 7.62x39 7.62x54 30-06 Springfield 300 Winchester Mag. 303 British *Cowboy may be used to make …CBA Member. SierraHunter posted this 02 February 2017. I've been working with the 300 blackout for a while now. I'm just starting to start working with cast bullets in it, and have been asked by several people to document my load development. My elderly goal is to have a load thay will shot a inch at 100 yards and cost under 10 cents each.300 BLACKOUT SUBSONIC 190 gr. SUB-X™ TAP® Item #80895 10.5" Noveske® 1:8" Muzzle 100 yds 200 yds 300 yds 400 yds 500 yds Velocity (fps) 1047 996 954 917 884 855 Energy (ft lbs) 462 418 384 355 330 308 Trajectory (inches) -1.5 0.0 -33.5 -105.2 -218.3 -375.9 8" LMT 1:8" Muzzle 100 yds 200 yds 300 yds 400 yds 500 yds Velocity (fps) 1041 991 ... Enables reloaders to duplicate certain factory loaded ammunition. Density designed for proper cartridge fit. Principal Purpose: Magnum Handgun/Pistol. Secondary Uses: .22 Hornet. Remarks: 150529 - 300-MP; 1 lb. bottle. 150530 - 300-MP; 8 lb. canister. Canister Sizes: View All 300-MP Recipes. Check out the best powders for 300 Blackout ammo below. At a Glance: Our Top Picks for Powder For 300 Blackout. OUR TOP PICK: CFE BLK Smokeless Rifle Powder. RUNNER-UP: Alliant Powder - Power Pro 300-mp Powder. BEST BUDGET OPTION: Hodgdon H110 Powder.Blackout curtain liners are a great addition to any room, providing privacy and blocking out unwanted light. However, in order for them to fit perfectly and do their job effectivel... ….

Nov 4, 2013. #8. I'm running a Remington 700 AAC-SD bolt action rifle in 300 Blackout using Hornady 150gn FJMBTs over 15gn of H110 with a velocity of 1,855. I shot a 2.2" group at 300 meters with those supers on Saturday. Very good load in this platform. 1-Cfe black with CCI 400,CCI 450 2-Accurate 5744 with CCI 400, CCI 41 3-Imr 4228 with CCI 450, Remington, 7 1/2 magnum primers 4- Hogdon lil gun with CCI 450, federal small rifle 5- n110 for lighter bullets n120 for high gr bullets with CCI 41, federal small rifle. I'm working up optimized loads for both subs and supers for a 16" bolt gun (1:7 ... Sep 21, 2014 · I just need to get off my butt and make some .300 AAC brass from .223 brass. Been feeling a bit under the weather lately, so just don't have the motivation to do anything. I've used Unique and Sierra 220 gr RN lightly tumble lubed with 45/45/10. 7.0 gr gave 1044 fps in a 10.5", and 844 fps in a 16" bolt action. Thinking of going .300 Blackout? Find out how it compares to the 5.56 in ballistics and knockdown power.1 Mar 2017 ... I have only worked with a couple bullets so far, but plan on trying quite a few, both powder coated and lubed. I know with jacketed bullets, the ...Product Overview. No. 11FS is intended for full-power loads in magnum handguns and smaller capacity rifle cartridges. This double-base spherical propellant was developed with an eye toward personal defense and incorporates a flash-suppressant that substantially reduces muzzle signature in low light conditions.Powder coating has become a popular choice for wheel finishes in recent years. If you’re looking for powder coat wheels near you, here are the top 5 reasons why you should choose t...Nov 22, 2021 · CFE (Copper Fouling Eraser), is an additive that significantly reduces copper fouling in rifle and pistol barrels. CFE BLK is a spherical powder formulated for the .300 AAC Blackout, but suitable for a wide variety of rounds, including smaller capacity rounds in the Hornet/Fireball class and AR-15 cartridges ranging from the 6.8 Remington SPC ... The 300 blackout round is prominent in hunting and personal defense. Be Alert: Publisher cannot be responsible for errors in published load data. Wt. .300 Whisper / .300 AAC Blackout / .300 Blackout (Hodgdon Data) reloading data with 73 loads. Using bullets from Hornady V-Max, Berger TGT FB, Nosler BT, Speer HP, Sierra HPBT, Nosler HPBT ... 300 blackout powder, Write a review. $47.99. SKU: 4781658. Designed specifically for .300 AAC Blackout cartridges, Hodgdon® CFE BLK Smokeless Reloading Powder pours easily for accurate measurements, and contains a proprietary Copper Fouling Eraser... , Alliant Powder 300-MP. Alliant Powder Reloder 10x. Alliant Powder Reloder 7. Hodgdon CFE BLK. ... Powder: BLACKOUT (Shooters World) Primer: Small Rifle Case: JAG. , Discover the best 300 Blackout powders for precision and power. Explore top-rated powders like CFE BLK, Alliant Powder, Hodgdon H110, and..., Real quiet (no hearing protection) in my 300 BLK HK Clone sear gun with 8.5 barrel and Rugged Surge. 1680 and CFE Black are very similar powders. 1680 is the tried and true powder used by several manufacturers for their sub loads. Another one to look at is Shooters World Blackout which is a Lovex powder., VV N120 is probably the best, cleaning powder. N110 and N105 is even better depending on your gas port size and location, especially with heavier subs (200gr+) If you can’t get VV powders, AA9, IMR 4227, lil gun, H110 are okay substitutes. For heavy supersonic, 150-175gr, then AA1680 will be your best bet, although CFE BLK will do okay., Data like Hodgdon, is problematic because the “subsonic data” is not related to pressure, Max load is capped at 1050 fps. Most 300 Blackout data is geared toward AR’s and powder that will cycle the action. This leaves about 20 good powders used in something hand fed off the table. Look for 300 whisper data., Want to produce 300 Blackout rounds with factory-manufactured quality? This guide reviews the best 300 Blackout powders and explains everything you need to consider before buying one., Printed from Shooter's Reference on 05/13/2024: https://www.shootersreference.com/reloadingdata/300-aac-blackout/, Fast or slow, it’s the right propellant for the 300 AAC Blackout While the 200 grain ELD-X bullet may look long, the CFE BLK powder is designed to take up just the right amount of space in the case. We were still able to get our desired powder charge and seat the bullet to function in a standard 5.56 AR-15 magazine., The following chart shows the usable interior case volume of all popular rifle cartridges, measured in cubic inches and assuming a standard .013″ brass thickness. By “usable case capacity,” I mean the internal area of the body of the case and shoulder, but none of the neck. This would be the space occupied by powder in the case of a flat ..., In the .300 Blackout, No. 11FS is capable of extremely high velocities with lighter bullets, making it the best propellant choice for shooters looking to maximize …, Powder brows permanent makeup is a popular cosmetic procedure that helps individuals achieve fuller and more defined eyebrows. If you’re considering getting powder brows or simply ..., CZ 527 American Synthetic Suppressor Ready Blued Bolt Action Rifle - 300 AAC Blackout - 16.5in. $699.99. Out of Stock. Ship To Store Ship to FFL. Add To Cart. Compare. 1. 300 AAC Blackout Rifles for sale online or in-store at Sportsman's Warehouse. Shop a full selection 300 AAC Blackout rifles from top firearms manufacturers at the best prices., loaded lengths of the (1) .223 Remington, (2) 7.62x39 and the (3) .300 AAC Blackout, all of which seem short compared to the. (4) .30-30 Winchester. SIG 120-grain HT Solid Copper loads hit the paper at 2,150 fps. The hollowpoint peeled back into four petals to the bullet’s solid shank., Reply reply. T800_123. •. A lot of people are going to say CFE BLK and 1680. They work great, but in my experience as well as a lot of people over at 300blktalk they're both noticeably louder when running suppressed subs then other powders. IMR 4227 is my personal favorite, I achieved some pretty good consistent loads and it also is the ..., I just need to get off my butt and make some .300 AAC brass from .223 brass. Been feeling a bit under the weather lately, so just don't have the motivation to do anything. I've used Unique and Sierra 220 gr RN lightly tumble lubed with 45/45/10. 7.0 gr gave 1044 fps in a 10.5", and 844 fps in a 16" bolt action., This new spherical propellant was designed expressly for the 300 Remington AAC Blackout cartridge. It provides full function of AR type rifles throughout the range of bullet weights, and is perfect for those sub-sonic reduced loads. In addition to being outstanding in the 300 Blackout, it performs beautifully in many smaller capacity cartridges, in particular, […], Nov 23, 2023 · There are so many different powders and bullets for .300 blk. A adjustable gas block can make lighter bullets still function the action. I shoot 147 M80 bullets for cheap plinker subsonics. Jhonnys reloading bench has some great videos of load development for a wide range of bullets and powders. , For example, 10.5 gr. Accurate 1680 behind a 208 gr. A-Max, 909 fps in the short barrel, 1089 fps in the rifle barrel. Which would suggest to me that, in the case of Accurate 1680 anyway, 8 inches of barrel does not give a complete burn. Faster powders like H110 or Li'l Gun may get a more complete burn., Cor-Bon subsonic data is: .300 Blackout 240 grain; muzzle velocity 1000 FPS, muzzle energy 533 ft-lbs. That is more muzzle energy than a 230-grain .45 ACP load yet includes the ability to fire more accurately and at greater distance while utilizing the same 30-round magazines you already have., Learn about where the .300 Blackout came from, its origins, what it was designed for and what it’s most optimal applications are here in our .300 blackout guide for best barrel length, build tips & more. .300 Blackout, Supersonic vs Subsonic, The .300 Blackout (BLK) has been called everything from the 5.56 killer to the black mamba. ... The 30 cal bullet acts as a plug in the smaller diameter barrel and the faster burning powder of the 300 aac will cause catastrophic failure, EVERY TIME. The confusion is understandable, because the diameter of the bullet is considerably bigger., Oct 26, 2021. #1. I thought I would share my experience with powders that work with the cartridge. So far the best overall powder is N110. N110 is very clean and makes great subsonic and full power loads. It has performed flawlessly in my 7” and 16” barrels. Running with suppressors it really is great. Little to no gas residue and reduced ..., Data like Hodgdon, is problematic because the “subsonic data” is not related to pressure, Max load is capped at 1050 fps. Most 300 Blackout data is geared toward AR’s and powder that will cycle the action. This leaves about 20 good powders used in something hand fed off the table. Look for 300 whisper data., Which powders for 300 Blackout? I'm new to reloading and unsure which powders will suit my needs for .300 Blackout. I would like to experiment with two different loads; 125gr supersonic and 220gr subsonic. I've read that A1680 is the best powder for cycling the subsonic rounds in an AR., Here’s a short list if you don’t have time to read this wonderfully written article. Best Barrel Length Overall – 9 Inches. Best Barrel Length For Hunting – 16 Inch Barrel. Best Barrel Length For Subsonic – 7 Inches. Best Barrel Length For .300 Blackout Pistol s – 6 Inches. The 9 and 6-inch barrel lengths are what I recommended for ..., Powder brows permanent makeup is a popular cosmetic procedure that helps individuals achieve fuller and more defined eyebrows. If you’re considering getting powder brows or simply ..., The best barrel length for a suppressed 300 Blackout is between 8 to 10 inches. At 10", the muzzle velocity hasn't reached its peak yet. Heavy subsonic 300 Blackout ammo in a 10" barrel may have lower velocities, but it allows for the use of a suppressor without damaging your hearing. Supersonic ammo out of a 10" barrel retains …, KFW. Loading some 300 Blackout for the first time in a couple of years and on the Dillon 550. Just now getting around to testing out some bullets and powder that I bought back in 2019. Here’s to the Good Old Days., 300 Blackout Facilitates Versatility, Efficiency, and Resourcefulness. Aside from the ease of reloading, the .300 blackout rounds use powder efficiently and even use less powder than the .223 rounds, which means less cash spent on gunpowder. You can also use 5.56 casings if you don’t have enough brass., Aug 18, 2020 · Posted by Alice Jones Webb on Aug 18th 2020. .300 AAC Blackout is hands-down, one of the coolest alternative AR-15 cartridges on the market today. This wicked cartridge is more than capable of dropping whitetails at 100 yards and ringing steel targets farther than that. And when you use subsonic ammo, the loudest sound you’ll hear is the ... , This Powder for 300 Blackout was specifically designed for both .300 Blackout cartridges and magnum handguns. If you hold velocity to a really high …, The subsonic 300 Blackout loads are often compared to 45 ACP, 10 mm or 9mm subsonic rounds. This showcases the dual purpose of the round. The advantage of 300 Blackout is if the shooter wants an AR-pattern rifle or pistol that is easily suppressed, they can use a common magazine and typically only need to swap an upper receiver.