RE: Scored a Good Deal on Bullets!
I have used IMR-4350 with both weights of Ballistic Tips in my Browning A-bolt. 56 grains has given me the best accuracy with 165's, and 55.0 grains has grouped the best with 180's. The 180's group slightly better.(.8" vs. 1.0" 3 shot groups)
I have no pressure signs with these loads, and am planning to cautiously work the 180grain load up. Good Luck,