ligonierbill
New member
Not shooting in any precision discipline, I never thought I'd be turning case necks. But...my 40-82 Winchester slugs 0.409 (standard bullet is 0.406). So, cast some, no problem. Except they won't chamber. Buffalo Arms 0.408 gas checks won't either (well, sometimes). These are 260 grain bullets, which was standard. BA 280 gr 0.407 will chamber, but they don't shoot well at all.
According to Mike Venturino, oversize bores are not uncommon, and he provides a solution. Yep, turn down the necks. He suggests a tool from RCBS. It's not commonly stocked, but you can order direct from them, which I did. Dedicated makers of true precision ammo will probably have a good laugh over this thing. It looks like an oversized pencil sharpener. But it does appear to work. I shaved 1 mil off two cases and I'm about to load some dummy 0.409 rounds. We shall see. Can't be this easy.
According to Mike Venturino, oversize bores are not uncommon, and he provides a solution. Yep, turn down the necks. He suggests a tool from RCBS. It's not commonly stocked, but you can order direct from them, which I did. Dedicated makers of true precision ammo will probably have a good laugh over this thing. It looks like an oversized pencil sharpener. But it does appear to work. I shaved 1 mil off two cases and I'm about to load some dummy 0.409 rounds. We shall see. Can't be this easy.