My old Remington loves 130 gr. ballistic tips, 56.1 gr H4350 with OAL of 3.499". This is quite a bit longer than standard, but my rifle has a long throat and luckily the magazine will feed it OK. This gives me more case capacity. If you can't seat out that long, this might be an over load in your rifle. I'm getting .75" or so 3 shot groups. Most times it goes right through a deer, even at 400 yards.
This rifle absolutely loved H450. If I would have known it was going out of production I would have bought a bunch. I would regularly get three shots into the threes with that powder.
