GLFA 300 win mag

[ARlife4me]

I'm also hoping it will tighten with more shots. This was actually the second round of shooting as the first one consisted of ~30 shots for barrel break-in and another 20ish for range time....so around 50 shots before this day for a total round count of 70-80ish between the two outings. And, totally agree with buying more because their price is super reasonable as compared to everyone else making big-bore AR-style rifles...will probably pick up at least one more 300WM from them in the near future!

Now, if we can just convince them to produce larger capacity mags...just because. I wonder if GLFA knows how this simple upgrade would catapult them into a whole new level of competition for those of us in this market.

Even if they offer a larger capacity mag it'll most likely be a double stack. Make it a double stack single feed and the world would be right! It'll be the best as having 1 feed ramp than 2. Hard to find any magnum AR's under 3k.

 

[TenTonHammer]

Even if they offer a larger capacity mag it'll most likely be a double stack. Make it a double stack single feed and the world would be right! It'll be the best as having 1 feed ramp than 2. Hard to find any magnum AR's under 3k.

Yeah, a double stack single feed would be awesome...even if it's only 8-10 rounds.

 

[Clem Bronkoski]

Never heard of them. I wish you good luck with it. We can't use a semi auto for big game here in PA - yet. Ok for varmints and coyotes ans small game.

 

[Steelflight]

Yeah, a double stack single feed would be awesome...even if it's only 8-10 rounds.

I'd just settle for a regular single stack of at least 8 rounds. At from the manufacturer. It's just awesome they are even able to put these long action beasts out at such prices.

 

[TenTonHammer]

As promised, here's a follow-up to the one I posted on 1/15/2024 providing more detail around the failure-to-feed issues I encountered. It happened 3 times in 30ish rounds, once for each of the following brands of ammo…Norma, Barnes and Federal ELD-X. One recurring theme was that it happened only on the second round in the magazine which was the first in the stack to be auto loaded. It seems that the bolt isn't traveling far enough to eject the spent round and is jamming it into the ejection port side wall...picture attached. This makes me believe that there's too much resistance either from the buffer spring and/or the magazine spring is creating too much resistance between the next round and the bolt as it travels backwards.

I doubt the suppressor is causing the issue because manufacturer states that it has little to no impact on bolt velocity, but I'll take several shots without it on the next outing just to make sure. If I encounter similar failures without the can then upgrading to an adjustable gas block would likely have little effect. This leads me to think that trying a lighter buffer spring would be the best place to start.

Thoughts anyone? Also, any suggestions on a good buffer spring replacement?

 

[ARlife4me]

is there any leakage around the gas block? look for discoloration. the spring would less of the issue than the buffer. do you still have the rifle length buffer or a carbine on it? tuning a rifle buffer is more of a challenge than a carbine buffer is as the weights inside are limited. you can take it apart and weigh the weights (should be 3), then find another weight (or 2) of lesser weight to install. make small changes like .5-.1oz change the 1st time then .5 the next. most standard rifle buffers weigh around 5.25-5.6ozs. when the 1st round fired doesn't fully eject, does the 1st round in the mag look unscathed/unharmed? if so it's short stroking (not enough gas). load 1 round and fire to see if the bolt gets held open? if not, then fire a 2nd round (no rounds in the mag) and see if it holds open after that? you state it's a 1st round issue (not mag 1st round/top round), correct? could be a lube issue with the buffer and spring and/or an issue with the bolt itself (gas rings). i ould use a flatwire sporing as it maintains a better more consistent bolt load pressure (same spring can be used in a rifle and carbine tube). buffer weight is more of a cycling issue than the spring. i would reply more about possibilities, but'll await response.