300BO magazines

[Boz330]

What are you guys doing to make your mags work with the BO? I understand that the Lancer war fighter mags are supposed to work with no modification but there are none to be had anywhere that I can find. I thought about running a mill cutter down the front groove for a couple inches to make room for the longer boolits. Thought that I would ask before I potentially ruined a good mag. I would think that just an inch or so would be enough to allow proper alignment at the top.

Bob

[HodakaGA]

With my 311299 loads (and 110-125 jacketed loads) I've found a C-products stainless 30 round functions fine with 25 loaded, a 20 round Thermold does fine with 18 loaded. My 20 and 30 round PMags need the rib filed or sanded down quite a bit.

With the PMags I have a couple that won't hold the bolt open after the last shot and a couple that always hold it open. Since I know it's a mag issue and not a load issue, it doesn't bother me a bit.

Thermolds don't seem to hold 223 securely but do ok with 300BLK. I only would use them at the range anyway where I wouldn't carry spares in my jacket pocket.

I don't really care for 30 round mags, they just hang too far and weigh too much so I use my 20 round PMags most of all.

[timspawn]

I have been using 20 round GI mags and a Colt 5 rounder with no issues. The 20 round Thermold mags seem to need a break in period but after that they work good.

[Dark Helmet]

Has a 300 BKO magazine purpose built by D&H. http://www.wideners.com/itemdetail.cfm?item_id=100001100

[Boz330]

Thanks a bunch, got a couple on order.

Bob

[Jupiter7]

I have no issues with d&h GI mags and green anti tilt followers. Also good luck with lancer 20's. Works with accurate 310240e subs and every jacketed load I've tried. Pmags have been hit and miss. I also have one AR stoner 10rnd, no anti tilt follow, will not feed subs.

[nhrifle]

Thus far I have had no problem using either aluminum or steel standard issue AR/M16 mags with mine. Just keep the OAL so it fits inside the mag and will feed. Only problem mags have been PMags, but I use those in my 5.56.

[Boz330]

The mags I have are the GI and the follower does tilt enough that the bolt rides over the case rim. It only does it on the last couple rounds in the mag.

Bob