I'm having trouble getting a 243 AI to shoot. It's a 31.5" Brux barrel, light Palma contour with 81 rounds down it. Chambering done by Greg at Kelbly's. Twist rate is 1-7.75. Brass is Lapua fire formed. Neck clearance is .2655 on a .269 chamber with .002 neck tension. So far I have tried Berger 105 hybrids, 115 Berger VLD bullets. H-4831sc, RL-26, N-560 and N-160. Wolf LR and CCI br-2 primers.
All testing is done from the bench at 100 yds over a chronograph.
So far, no load combination has shown any indication of wanting to shoot, and no load have less than a 20 fps variation, and groups are 1"+ at best for 5 shots.
Any thoughts as to what may be going on?
thanks,
Lloyd
All testing is done from the bench at 100 yds over a chronograph.
So far, no load combination has shown any indication of wanting to shoot, and no load have less than a 20 fps variation, and groups are 1"+ at best for 5 shots.
Any thoughts as to what may be going on?
thanks,
Lloyd