Magazines

[mstarling]

I sat down with some dummy ammo loaded with cast 247 gr bore-rider bullet (NOE 311-247) that is rather fat abt the area that would contact the rib in most magazines.

I purposefully set them in the cases so them so that if they were going to interfere with the ribs, they would ... loaded almost as long as they would fit in the magazines.

The following magazines did not allow the cartridges to stack properly:

Colt 20
Adventureline 20
USGI 30
C Products 30
HK 30

The following magazines are pretty decent but perhaps not quite perfect:

Thermomold 30

The following magazines seem to stack properly:

Orlite 30
Beta-C Mag

The last three magazines hand cycled fine. Will test them with live ammo when I get a chance.

Mike

[rsilvers]

I think it is a given that you can only put about 6-10 rounds of this type in a mag. Fine for hunting.

[snipecatcher]

I took a few thousandths from the ribs of a Pmag with a file and it has fed everything I've put through it. I haven't tried taking the ribs completely off, but I think it would work? Has anyone removed the ribs on a Pmag?

[mstarling]

Rsilvers,

You may take it for granted. Fine with me. I'll prove it to myself by trying with types I own just to make absolutely certain.

After all ... what fun is it to own an RR M16 lower, a 300 BLK upper, and a good bullet mold if the max mag dump you can do is 6 to 8 rounds?

The Thermomold, Orlite and Beta-C mags look very promising.

Mike

[rsilvers]

I would only use them for hunting, not mag dumps - so I am cool with 6-10 rounds. But from the perspective of someone who has the mold and it is their lowest cost heavy-bullet option, then I could see wanting 30 rounds.

So these really feed up the ramp? I have 500 of these bullets coming so I will find out. Someone needs to shoot a Black Bear or Bison.

[i8asquirrel]

Originally Posted by snipecatcher

I took a few thousandths from the ribs of a Pmag with a file and it has fed everything I've put through it. I haven't tried taking the ribs completely off, but I think it would work? Has anyone removed the ribs on a Pmag?

I'm with sniper on this ( I use a dremel with a sanding drum and I take out most of the rib) They feed everything I put in them

[mstarling]

Yes ... the 311-247 NOE projectile really does feed loaded to 2.170".

If Orlites will seat in your rifle they do work unmodified as do Thermomolds. Either of these mags could do with an anti-tilt follower though.