Short Magnum: not belted and not rebated rim?

ranger1183

Gunny Sergeant
Full Member
Minuteman
Jul 18, 2006
3,108
16
Whitefish, MT, USA
I'm looking for a short action magnum cartridge that doesn't have a rebated rim like the Winchester Short Magnums and the Remington Short Action Ultra Magnums do.

Also, the brass can not be a belted magnum like the old 6.5mm Remington Magnum and the .350 Remington Magnum.

I'm looking for a short action brass that will ride very well in AICS mags but without a rebated rim or a belt getting in the way.

Ideas?
 
Re: Short Magnum: not belted and not rebated rim?

Win 7WSM and 300WSM isnt rebated, is it? and it rided a AICS mag just fine with some minor mag lip tweaks.
 
Re: Short Magnum: not belted and not rebated rim?

WSM cartridges have a .535 rim diameter and a .555 base diameter.

I can't find much on the Ruger Compact Magnums except that they have a non-rebated .532 rim. Maybe this is what you are looking for.
 
Re: Short Magnum: not belted and not rebated rim?

In that case the RCM's are the only way to go. .532 base diameter, and nominal .532 case head.

Or you could just use the 375 Ruger parent case and neck it down and shorten it to whatever you want....
 
Re: Short Magnum: not belted and not rebated rim?

Why would having a rebated rim get in the way of ACIS mags? Or even have a belt mag will work fine.
 
Re: Short Magnum: not belted and not rebated rim?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Bacarrat</div><div class="ubbcode-body">Why would having a rebated rim get in the way of ACIS mags? Or even have a belt mag will work fine. </div></div>

My point of concern is not about the relationship between the brass and the AICS mag. I've used the Remington SAUM brass in modified AICS mags.

No, my concern is that I want (by my own personal choice) to have the highest part of the case sticking out of the magazine to be the <span style="font-weight: bold">cartridge rim.</span>

By doing this, the chance that the bolt will skip over the rim and just slide across the brass side (and thus causing a failure to feed) are reduced.

Something I'm working on.