Reloading for Semi's

[.264 Win Mag]

I have a buddy with a semi 7mm rem mag. Can I use my dies that are 7mm rem mag but not small based and new brass to reload for his semi rem mag? Thanks for advise

 

[senior]

Only one way to tell for sure.
Size a piece of brass & see if it will chamber smoothly.

 

[tiriaq]

If you are using new brass it won't matter. If you are resizing fired brass, might be OK, or a SB die might be needed. Ammunition must chamber freely without resistance in a semi.
Incidentally, you might want to help your friend load his ammunition with your equipment, rather than loading for him.

 

[t-star]

i've got a remmy 742, a browning bar, and a bunch of m14s- none require a small based die

 

[Ganderite]

Like t-star said.....

Size a fired case, prime and gently chamber it. If it goes "bang" when you pull the trigger, you are good to go.

 

[sunray]

Semi-autos, of any make, must be Full Length resized every time. Either a regular FL sizer die or an SB die will do. If you have an FL sizer die, you're all set. The case lengths(new brass isn't necessarily the right length. Trim 'em so they're all the same, chamfer and deburr the mouths. Then size 'em in a FL sizer die) and seating the primers properly is important too. Other than that, reloading for a semi-auto isn't any different than for a bolt action.

 

[Silverback]

I reload for a few semi-autos and have never needed a small base sizing die, just a full length resize with regular dies works fine for me too.

 

[lcq]

I load for ar15, ar180b and remmy 7400 and I don't own any small base dies.

Brian

 

[senior]

Every gun is diff.
I've loaded for two 309 BLRs neither would chamber a standard FLS piece of brass both needed a SB die! Go figure