![]() IMPORTANT: Please view the special notes by clicking hereīe Alert: Publisher cannot be responsible for errors in published load data. Load data is available from both Sierra and Hornady for 190 grain bullets, so you dont need to feel like your off in the weeds somewhere. Subsonic ammo is a good deal lower pressure than supersonic ammo. Best load data for subsonic 300 Blackout 300 blackout subsonic load data By af220wa in Rifle/Shotgun af220wa 53 Posted I'm starting to load 300 blackout and looking for the best bullet weight, powder type/grains for sub sonic suppressed. AA9 Sierra lists it for super thru sub sonic loadings for 300 whisper. Vihtavuori N120 Sierra lists it for super thru sub sonic loadings for 300 whisper. 308" bullets: 195 GR Hornady BTHP COAL: 2.250" maximum COAL: 2.260" maximum case length: 1.368" trim to length: 1.358". This 220 gr 300 Blackout bullet is ideal for subsonic loads. Alliant 300mp seems to show promise for super sonic loadings. Gun: Advanced Armament Corporation AR-15 barrel length: 16 inches case: Remington primer: Winchester Small Rifle bullet diameter. The 300 AAC Blackout (300 BLK) is a popular alternative cartridge in the AR-15/M16 M4 (AR) community. 300 AAC 190gr Sub-X Subsonic ammunition from an upper with a 8' 1. Warning! Notes: This data was shot by Brian Pearce, Wolfe Publishing Company. 300 AAC 190gr Sub-X SubsonicWe shoot Hornady. 300 Blackout (Using 195 GR Hornady Bullets) I finally started to form my own brass this week and should have a small batch ready next week.300 Whisper /. Known for its ability to deliver heavy subsonic bullets for standard AR magazines while cycling the action in suppressed applications, it also works well with lighter supersonic loads, offering a similar external ballistic performance to the 7.62x39mm Russian ( check out my 300 AAC Blackout Review from September 2012 ). In 9mm, most loading data are supersonic. All data in this caliber is subsonic but is not normally tagged with the name subsonic. Out of my 16' ar, I was getting from 1125 to 1175 as my averages for the CFEBLK loads and around 110 to 1150 on the H110 loads. no issue with the can so far:Ģ45 gr palmetto w/ 11.4 g 1680 (don't have COAL but ogive to head was 1.530) - 1043 avg, SD 19.9, ES 60 Not all subsonic loads are noted as such in the data, because the cartridge is not capable of producing supersonic velocity. I was loading some 220 gr subsonic loads for my 330blk. If you haven't tried powder coated lead, I suggest you do, just as good and a lot cheaper. I have seen ppl get it to cycle but it required reaming the gas port with I am not willing to do. ![]() Subs do not fly like supers, and unless you have. I am using a 8.5" noveske barrel w/ 7.62 specwar. 300 Blackout Load Data SubsonicBest bullet for 300 AAC Blackout Subsonic loads. ![]() Loaded with legendary Hornady ® bullets, Hornady BLACK ® ammunition is designed to fit, feed and function in a variety of platforms. Hornady BLACK ® ammunition features versatile loads optimized for excellent performance from America’s favorite guns. ![]() since I have noticed that headspace is all over the place, case length varies a bit (but it is all in spec) and I have had to re-do all the primer pockets to remove the crimp. 300 Blackout 208 gr A-MAX ® Hornady BLACK ®. I bought all my 300 blk brass processed from someone else. 300 AAC Blackout - Manufacturer Loading Data Shellholder: Hornady 16 Lee 4. Now I am going to reface this with that I am having issues with my brass. 300 BLK with the idea of shooing mostly subsonic loads from it and right.
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