The PRC SAMMI chamber tolerances are too close. ADG brass has the most problems but other brass can have the same issue. i ended up purchasing a custom reamer from Manson Precision and had my smith enlarge the chamber. This solved the problem with my ADG brass.
Scott
I know this is not the correct category for this question. I am no longer receiving the daily forum. I have tried sending messages through the contact us but ever time it won’t go through. The same response is you must wait 30 seconds. Doesn’t matter how long I wait, still won’t go through. I...
I first went the route of the Whidden custom die and it did not correct the problem with ADG brass. I purchased a custom reamer from A Manson and problem solved
Just beware Hornady brass can have but not as much as the same issue, it might take a few more Reloading’s to get there. Before I ordered my custom reamer I switched to Hornady brass and at the 4th reloading I started having the same issues.
I had the same problem with my 6.5 PRC using ADG brass. I first tried to correct the problem with a custom die made from my fired brass and it didn’t resolve the problem. Next I ordered a custom reamer from Manson that they make for ADG brass and it corrected the problem.
I shoot Barnes in 4 of my rifles 6.5 Creedmoor, 6.5 PRC, 280ai and 30 06. All like a jump off the lands between 0.050 through 0.075. Barnes tend to like a big jump