308 subsonic loads12/12/2023 ![]() ![]() The Benchmark barrel has a tight 1:8.5 twist, much faster than a typical 308 Winchester barrel, set in a BAT Igniter action and Foundation Dominion stock. It’s also become one of my favorite rifles. 308 Winchester is a rimless, bottle-necked, rifle. Our 308 Shorty build seemed ideal for use with heavy bullet subsonic ammunition. 360 so it still flies reasonably far and straight. 308 Ammo For Sale Buy 308 Win & 7.62x51 NATO Ammo Online Best Ammo Prices The. Luckily, the BC of this chunk of lead at that speed is in the neighborhood of. With the Marine's 30 Whisper I had no problem getting sterling groups with a 210 grain Lyman #311284 at 1060 fps, but in standard 1-10" twist guns I start getting instability at less than 1400 fps with this bullet. I don't know how expert I am but I can offer this (apologetically) late observation about slow 30 cal cast loads. 308 can effectively kill any hog or predator game if you place the shot, so I did something just like youI tried it. Trail boss will give a nice case fill, even when downloaded.Īndrew on here, is this site,s expert on cast bullets, he,s been at it all his life, maybe he will chime in. ![]() Hornady 190gn Sub-Xs are ok, you can also use the 160gn FTX for the 30-30. I shoot the 200s in 300 BLK - theyre designed to open slow, and these two are in your twist range. More guns have been blown up by far, by detonation, than overpowered loads. 308 Expanding Subsonic Bullets 1:10 twist (Box Qty - 50) THIS IS NOT LOADED AMMO', Projectiles, 308180SBLK. Long grooves in its gilding metal jacket. The Sub-X bullet used in Subsonic Rifle features a lead core. I suspect youll probably end up between 12.5-13.5 gr trail boss for the 220gr RN.308 smaller sized case would normally take less powder charge, but the 220gr bullet is heavier Which will take more powder to. Subsonic Handgun utilizes tried-and-true XTP® bullets that expand reliably at subsonic velocities. 30-06 sized case using win brass I ran 13.5gr trailboss under a 208 amax seated. When you get down to tiny loads of blue dot etc you run the very real risk of the powder lying flat in the case, and the primer flashing across the whole surface area of the load in one go, and causing detonation, instead of progressive explosive Detonation blows guns up. Hornady® Subsonic Ammunition designed for accuracy and performance below the speed of sound now comes in both rifle and handgun loads. There has been a lot of chatter on Internet sites lately about centerfire loads that fire bullets at subsonic velocities. Trail boss is a pretty failsafe powder to use in a subsonic load, as its virtually impossible to overload it.Be VERY carefull with ANY powder, DOWNLOADING it to subsonic levels. Winchester centerfire metal ammunition for 308 caliber rifle gun rifle at subsonic speed for use with a sound moderator, also called a silencer. These loads and others were shot with Trail Boss powder in an attempt to develop subsonic velocities (left to right).
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