why wouldn't this work?

[JTROKS]

I guess he's talking about a case fired other than his rifle. It all depends on the dimension of the other rifle. It has to have a chamber just a tad longer than his rifle. If he's talking about range pickup brass fired from a bunch of different rifles the odds will be like winning the lottery.

[Whiterabbit]

Are we talking about a production rifle from RemChesVage or a custom rifle with a minimum dimension chamber? My Interarms MK-X in 270 Winnie has a tight neck and the brass I shoot out of it will seat 270 bullets without neck sizing. Probably why it shoots in the .3s with 110 grain varmint bullets if I don't heat up the light weight barrel.

Know what sucks about a markX with a cold barrel?


...Nothing. (although yours is wrong cause its a 270, not a 7x57 like mine! )

OP, there are a few things wrong with your idea:

1. brass springs back. You are sizing TO your chamber, you need to go a smidge over to equal the chamber size after springback. your idea will yield a bolt that is hard to close.

2. cast tension: there wont be any. That's why we oversize the neck then pull it open with the expander plug. Yields constant neck tension which yields constant ignition which is what ultimately yields good uniformity on your internal ballistics. Critical for your terminal ballistics (with respect to point of impact).

3. sizing force. Your bolt cam is NOT a sizing press. But more power to you if you want to crush that thing over to almost size your brass.

Don't take my word for it. Seriously. Try it and tell me how it feels on your press to seat a bullet compared to sized in any sizing die. How it feels to pull the bolt down.

[Hunt]

thanks for the responses I now realize the part I wasn't thinking about is that the brass needs to be pushed further than spec so it springs back to an in spec size.