12-20-2019, 11:40 PM
Where I noticed this, and it had already been mentioned by others pushing the .308 Winchester, was that the looser 1/12" twist just doesn't seem to hold together well once we started getting to 800yds and farther.
I can take the same bullet/load through another .308 with a tighter twist, and get predictable impacts as opposed to the wild impact beaten zone of the loose twist .308 Win.
Not only that, but with a tighter twist in a shorter barrel, I can get a tighter cone/groupings than a longer barrel/looser twist shooting the same bullet.
I've seen this with SCAR-H .308s that come through my DM or LR courses, but in the same conditions, tighter twist .308s can stack the rounds on a very small segment of a plate at 800-1000yds, normally the 175gr SMK or 178gr Hornady.
My 1/8 twist Liljas are really accurate though at distance, even from my lightweight Wasp contour 17.6" barrel Grendel.
I can take the same bullet/load through another .308 with a tighter twist, and get predictable impacts as opposed to the wild impact beaten zone of the loose twist .308 Win.
Not only that, but with a tighter twist in a shorter barrel, I can get a tighter cone/groupings than a longer barrel/looser twist shooting the same bullet.
I've seen this with SCAR-H .308s that come through my DM or LR courses, but in the same conditions, tighter twist .308s can stack the rounds on a very small segment of a plate at 800-1000yds, normally the 175gr SMK or 178gr Hornady.
My 1/8 twist Liljas are really accurate though at distance, even from my lightweight Wasp contour 17.6" barrel Grendel.
NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com