I pulled that PBB barrel on my gun and put my PVA barrel on and things are back to normal.
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I think my left to right stringing is the McMillan stock. It has a weird grip.
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I shot match burners and factory. Just fine.
I'm going to try DTACs this weekend. The PBB barrel made a 4" group of those too.
I inspected the PBB barrel. It has rifling but it just doesn't work. It behaves like a shot out barrel.
What’s the plan for the PBB barrel? Sending back to them?