You pretty lucky in my opinion as my Target model slugs at .381. It's hard to even find a mould that drops a bullet that big without going custom. You should have good results with .378 or .379 bullets any bigger may or may not shoot well. Another plus is if you decide to shoot jacketed bullets you should be able to get good accuracy with the Hornady and Sierra 375 bullets meant for the 375 Win. they keyhole out of mine. Lots cheaper than Barnes or custom jacketed bullets. Another problem with the cast bullets bigger than about .379 is that the round may not chamber due to the case neck area being larger than the chamber, turning the case neck thinner may help but is a chore best avoided if possible. I know cause I have to turn the necks on mine.
