Sounds like you're there with 7828. I'd play with seating and shoot it to 300 yds plus next.

Thing I love about the Mashburn is that even lolly gagging with starting loads you're right there with top end 7 mag loads. No mysteries about "where'd my velocities go?" LOL

Last edited by BobinNH; 04/16/16.


The 280 Remington is overbore.

The 7 Rem Mag is over bore.