Neck sizing question

[22BRGUY]

I AGREE WITH BUMPING SHOULDERS _+-2 THOU IN FL DIE.

 

[divingin]

I turn mandrels that work in Lyman M dies. Just how I started,there's dies available now that use "over the counter" gage pins.

There's also a collet style bullet puller. Stick a gauge pin in (works better with a chamfer to break the sharp edge) and lock the die (as you would pulling a bullet) and you have a nifty mandrel expander die.