V valin Member Joined Mar 14, 2010 Messages 15 Location Sudbury, Ontario Sep 30, 2010 #1 I am about to try running some 250gr. Speer Grand Slam bullets for my 338-378, and am wondering if any of you have any load data for the 250's with h1000 powder, or have a recommendation of where I should start. Thanks.
I am about to try running some 250gr. Speer Grand Slam bullets for my 338-378, and am wondering if any of you have any load data for the 250's with h1000 powder, or have a recommendation of where I should start. Thanks.