I searched, I swear I did. I have a 12 twist 308 barrel and need a place to start on a sub load. I loaded a couple 180's and they keyholed. I think I might have to go down to 168's. Anybody have a turnkey sub load? I will be using trailboss at about 3000 ft. elevation. Thanks a bunch.
- Thread starter half
- Start date
Re: .308 sub load for 12 twist
Interesting I thought since the 180's keyholed I would have to use a lighter bullet through a long twist. I have a bunch of 208's and 210's, I will try a heavier bullet a see if it works. Thanks.
Interesting I thought since the 180's keyholed I would have to use a lighter bullet through a long twist. I have a bunch of 208's and 210's, I will try a heavier bullet a see if it works. Thanks.
Re: .308 sub load for 12 twist
Im looking for some good loads for the 30-06 too, sierra 165gr with 50.9 grs of imr4350 gives me good accuracy at 100yds. Looking for dome loads for the 100grs.
Im looking for some good loads for the 30-06 too, sierra 165gr with 50.9 grs of imr4350 gives me good accuracy at 100yds. Looking for dome loads for the 100grs.
Re: .308 sub load for 12 twist
.308 win & subsonic & 12-Twist .
Were the 180's you were using HPBT's or pointed or round soft-points ?
Also if your using 12-twist & HPBT's you need to go down in weight like 168 or 150's . HPBT's are to ass end heavy with the hollow point cavity & long length .
round nose or pointed soft-points are going to be a WAY lot more stable on the bullet spin-RPM & not key-hole with the slower 12-twist . plus they have more bearing surface on the bore than the HPBT match bullets.
.
.308 win & subsonic & 12-Twist .
Were the 180's you were using HPBT's or pointed or round soft-points ?
Also if your using 12-twist & HPBT's you need to go down in weight like 168 or 150's . HPBT's are to ass end heavy with the hollow point cavity & long length .
round nose or pointed soft-points are going to be a WAY lot more stable on the bullet spin-RPM & not key-hole with the slower 12-twist . plus they have more bearing surface on the bore than the HPBT match bullets.
.
Re: .308 sub load for 12 twist
Sierra 150gr sbt with 53.6grs imr 4350
Sierra 165gr sbt with 50.9grs imr 4350...both give me good accuracy but the 150s are a tighter group, im shooting a Ruger M77 with a Shilen #7HV and a 1:12 twist
Sierra 150gr sbt with 53.6grs imr 4350
Sierra 165gr sbt with 50.9grs imr 4350...both give me good accuracy but the 150s are a tighter group, im shooting a Ruger M77 with a Shilen #7HV and a 1:12 twist
Re: .308 sub load for 12 twist
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: softcock</div><div class="ubbcode-body">.308 win & subsonic & 12-Twist .
Were the 180's you were using HPBT's or pointed or round soft-points ?
Also if your using 12-twist & HPBT's you need to go down in weight like 168 or 150's . HPBT's are to ass end heavy with the hollow point cavity & long length .
round nose or pointed soft-points are going to be a WAY lot more stable on the bullet spin-RPM & not key-hole with the slower 12-twist . plus they have more bearing surface on the bore than the HPBT match bullets.. </div></div>
Thanks for the info, I will try to find some round nose bullets
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: softcock</div><div class="ubbcode-body">.308 win & subsonic & 12-Twist .
Were the 180's you were using HPBT's or pointed or round soft-points ?
Also if your using 12-twist & HPBT's you need to go down in weight like 168 or 150's . HPBT's are to ass end heavy with the hollow point cavity & long length .
round nose or pointed soft-points are going to be a WAY lot more stable on the bullet spin-RPM & not key-hole with the slower 12-twist . plus they have more bearing surface on the bore than the HPBT match bullets.. </div></div>
Thanks for the info, I will try to find some round nose bullets
