I've never had the need to ream a case neck, but that is about to change; I am forming Tokarev brass from .223, and have a 30-06 rifle that requires a .313" boolit (Argentine Mauser, rechambered but not rebarreled). Anyway, neither will accept a projectile without bulging to an unacceptable degree (flaring the case mouth will get them started, but a bulge appears immediately below that). So, as I understand it, I need something along the lines of a Forster inside-neck reamer, to thin the brass in the necks of these cases. That would be the .308 and .303 reamers, respectively. Have I got this right?