el matador
Well-Known Member
- Joined
- Jul 30, 2008
- Messages
- 647
Re: AR2217 Is H1000
You're still 10-12 grains below the published max data, which is an enormous amount. I would check your powder. Maybe you used H4831 instead of H1000? Maybe you got a bad lot of powder? If possible, try some loads with a new bottle of powder from a different lot. Or try a different powder altogether. If you get the same results at least you've eliminated the powder as the culprit.
79.0 grains is about the max load for a 300 SMK with H4831. If your powder got switched somehow I would expect the exact results you're describing for pressure and velocity.
You're still 10-12 grains below the published max data, which is an enormous amount. I would check your powder. Maybe you used H4831 instead of H1000? Maybe you got a bad lot of powder? If possible, try some loads with a new bottle of powder from a different lot. Or try a different powder altogether. If you get the same results at least you've eliminated the powder as the culprit.
79.0 grains is about the max load for a 300 SMK with H4831. If your powder got switched somehow I would expect the exact results you're describing for pressure and velocity.