TC's doesnt have a standard size in their bores though, anywhere from .598 all the way up to .502 was normal. Although in the past year or 2, the tighter bores seem pretty common. One guy on another forum, heck you know this one LOL, cant even fire 2 shots with BH209 before he has to clean his barrel because it gets so tight.

This Optima has well over 2,000 shots through her and so im sure its a bit looser than the Accura V2's.

She just dont like the crush ribs for some reason or the other. I agree though, the hph 12 or 24's should do the trick.