Alex Wheeler
Well-Known Member
I wanted to share my load data on my version of the 338 lapua improved. This one is a 32" Krieger 9.35 twist. This is well used brass on its second firing after annealing. Necks brushed. 300 bergers jumped .010, sorted by oal only. Cci 250s and N570. Neck tension .003 seated with about 45lbs. Rl33 is also a good choice in this case, and it can shoot very well. Currently that combo holds the best 2000yd agg. I did all my shooting as 3 shot groups allowing the barrel to cool each time at 1008yds. Shooting from a bipod is a little slow so I do not look at poi shift as much as I normally would during load development.
