CIP length AICS will .300 Win Mag work?

[scoobaman]

Will .300 Win Mag work in the CIP length AICS?

 

[Scott Seigmund]

Scoobaman,

The .300 WIN magazine (P/N 0479) is shorter in length versus the .338 CIP (P/N 4808) and will not work in the CIP magazine aperture.

 

[scoobaman]

Wow I do not cease to be amazed with the expediency of the answers I receive on here. Okay so next question would be; will .300 Win Mag feed from a .338 magazine?

 

[338RUM runner]

Yes 300 WM will fit and feed from 300 WM CIP mag. 300 Ultra and 338 Ultra also feed from CIP mag. I use 300 WM CIP mag for my 300 and 338 Ultras in a McRees stock. You have to cut the shoulder stop in the mag away for the ultras. Hope this helps and post if you need more info.

 

[scoobaman]

So to be clear, .300 Win Mag rounds will function in a CIP length .338 magazine designed for the AICS?

 

[338RUM runner]

Yes, they make both a 300 WM and a 338 LM mags in the CIP, you can get them from McRees. I found the LM was to wide for the Ultra but the WM was better cuz the belt on a WM is the same Dia. as the body of the Ultra. If i'm not clear just keep asking.

 

[scoobaman]

Thanks so much for helping me out! Man I'm glad I joined this forum. I've had nothing but helpful responses left and right since signing up.

 

[turtlesniper]

Accurate mag makes a 300 wm spacific cip magazine

 

[Lucky Jack]

Will .300 Win Mag work in the CIP length AICS?

Are you talking about locking into the chassis or the cartridge fitting? 300 win mags will lock into a 338 lm chassis.

 

[Chevoke]

How about for the 300 PRC? It wont fit in my Magpul LA AC L 300wm magazine. Does one need the 338lm CIP mag or just the 300wm CIP length?

 

[gnochi]

For 300PRC, you have a couple choices:

1. Use the 338 Lapua CIP length AICS mag and plan on bending the feed lips so it works properly
2. Use a 3.850in 300wm AICS mag

MDT’s magazine for option 2 seems like a great choice.

 

[coolbreeze91]

Anyone able to find a CIP length mag that holds a capacity of 10 rounds of 300 wm?

For tactical application on an m40a5ish build.