[old roper]

First off is this a new/used rifle? I've had luck in the past shooting IMR-4831
with 160gr Partitions. Load came out of Nosler # 1 manual 59gr to 63gr/IMR-4831 with 160gr Partition @ 2991fps manual velocity was 3011fps.

If you check Nosler manual #6 that load is still list but only change is velocity they lower it to 3008fps and reason for that 1st manual used 25" long barrel Manual #6 used 24" long barrel.

I've also used H-4831 with 175gr bullets in the 7mag. I see you live in Co if your close to the Springs I've got a bunch of powder give you some to try send PM if interested.