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Thanks for the replies. Don't seem to be getting the answer I'm after.
What case do you think will push the 162 eldm at about 3050-3100 ft/sec out of a 24" barrel using 2217 powder with 58000psi...

Will be using 2217 as this seems to be the powder of choice to achieve this performance and pressure. Will be and all rounder hunting rifle with a fair amount of gong shooting. If I can achieve this...

Thanks for the replies.
One of the main ideas is to run at low pressure like the gap, to get good barrel life. They seem to be getting 3-4000 rounds from a barrel. So I don't think the 7mm saum...

Working along the same guidelines as a 6.5 Gap 4s

24" barrel
9 pounds or under with scope and sling and mag
short action
low recoil
keep at 58,000 PSI or less
at or under 6 mils to 1000
1000...