AICS 10rd .308 Mag feeding inconsistency?

[5RWill]

Just got my AICS 10rd in the other day so naturally i wanted to try it out and see how everything worked. Some rounds feed fine others seem to be angled down after extracting the previous one. When the bolt pushes on the rim of the case it pushes straight into the magazine wall causing a jam (kinda like a regular 700 floorplate does sometimes) then i can just slide the round back and it will come up right in the magazine and feed fine. These are loaded with a COL of 2.810 so nowhere near max OAL from what i understood.

 

[Takashi]

Re: AICS 10rd .308 Mag feeding inconsistency?

I had a similar issue with my AX AICS going very close to COAL. I had a rem 700 5r on it that could never reliably feed FGMM, much less long handloads.

Sometimes there are some recommendations of tweaking feed lips to have the round be presented higher in the chamber. I had the exact same problems with my rounds and it seemed that adjusting the mags or having the ramp looked at a gunsmith was the answer.

I moved up to an AI AE without actually resolving this issue, but my research tells me to adjust feed lips (bending the with pliers) and see if that helps. If it doesn,t the ramps may need to be shaped.

 

[5RWill]

Re: AICS 10rd .308 Mag feeding inconsistency?

Thanks man Ill be looking into that.

Anyone else had any similar problems?

 

[LoneWolfUSMC]

Re: AICS 10rd .308 Mag feeding inconsistency?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Blackops_2</div><div class="ubbcode-body">Just got my AICS 10rd in the other day so naturally i wanted to try it out and see how everything worked.</div></div>

What are you using it in?

If this is a non-AI rifle or Chassis, the bottom metal way not be installed at the correct height to feed reliably. All my AICS mags feed perfectly in AI systems.

 

[ctressler]

Re: AICS 10rd .308 Mag feeding inconsistency?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: takashi</div><div class="ubbcode-body">Sometimes there are some recommendations of tweaking feed lips to have the round be presented higher ...... </div></div>

Opening the feed lips just a little at the front end, fixed my feeding problems.

 

[5RWill]

Re: AICS 10rd .308 Mag feeding inconsistency?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: LoneWolfUSMC</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Blackops_2</div><div class="ubbcode-body">Just got my AICS 10rd in the other day so naturally i wanted to try it out and see how everything worked.</div></div>

What are you using it in?

If this is a non-AI rifle or Chassis, the bottom metal way not be installed at the correct height to feed reliably. All my AICS mags feed perfectly in AI systems.</div></div>

Its a 700 with APA RTG in a McM A5 done by Jered so I assume its the right height. Some feed fine then the next round will be angled slightly down in the magazine and when the bolt face hits the rim it pushes the round into the wall of the magazine. If the round isn't angled or sitting up right its fine. It might be the feed lips it just scares me that I would have to slightly bend them to find out.

 

[LoneWolfUSMC]

Re: AICS 10rd .308 Mag feeding inconsistency?

It happens. At some point you are going to end up dropping a magazine on the lips. Learning how to fix them is part of life.

 

[5RWill]

Re: AICS 10rd .308 Mag feeding inconsistency?

I just ran 10rds through it again and some are getting caught on the underside of the feed ramp. Now I don't think it's the mag at all. Guess i didn't notice it at first.

 

[Merc8541]

Re: AICS 10rd .308 Mag feeding inconsistency?

Get in there and open the mag-lip a litlle, make sure the bottom metal is seating the mag in the right spot. Polish all sharp edges and burs. You might have to adjust your bottom metal and bed it so its "perfect". Just give it a little TLC and she will treat you right.

 

[Stewart]

Re: AICS 10rd .308 Mag feeding inconsistency?

Use a 1/4 inch round file and make a notch right where the bullets feed into the action. Makes a much cleaner cut than what a dremel does.

 

[TN-MadDog]

Re: AICS 10rd .308 Mag feeding inconsistency?

Have you been able to try another mag to see if that makes a difference?

 

[seanh]

Re: AICS 10rd .308 Mag feeding inconsistency?

could it be a feed ramp issue? Maybe opening it up a little will help.

 

[ctressler]

Re: AICS 10rd .308 Mag feeding inconsistency?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Blackops_2</div><div class="ubbcode-body">I just ran 10rds through it again and some are getting caught on the underside of the feed ramp. Now I don't think it's the mag at all. Guess i didn't notice it at first. </div></div>

Good find! Mine did the same but I was able to just bend the front half of the mag lips and it quit catching. I would try to adjust the mag first, if that doesn't fix it you might be able to grind on the ramp to allow the rounds to pass it or you might need to adjust your bottom metal. Pictures would be helpful.

It's really no big deal to bend the mag lips, you can always bend them back!

Good luck, let us know what you figure out.

 

[5RWill]

Re: AICS 10rd .308 Mag feeding inconsistency?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TN-MadDog</div><div class="ubbcode-body">Have you been able to try another mag to see if that makes a difference?</div></div>

I haven't i guess i could order a five round sometime.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: CTressler</div><div class="ubbcode-body">



Good find! Mine did the same but I was able to just bend the front half of the mag lips and it quit catching. I would try to adjust the mag first, it that doesn't fix it you might be able to grind on the ramp to allow the rounds to pass it or you might need to adjust your bottom metal. Pictures would be helpful.

It's really no big deal to bend the mag lips, you can always bend them back!

Good luck, let us know what you figure out.</div></div>

I'll post some pictures when i can. Guess i'll try bending the feed lips before messing with the feed ramp. If i had to choose one i'd rather have to alter the mag than mess with the ramp.

 

[TN-MadDog]

Re: AICS 10rd .308 Mag feeding inconsistency?

Don't know if this helps but I took some pics of rounds in my rifle with rounds in mag and some pics of the mag out of the rifle. I don't have a Remington action so it is probably different but thought I would post it for comparison.

In the first picture you can see the spacer in the front of the mag is pretty much flush with the feed ramp. On your Remington, does the feed ramp extend back over the spacer?

 

[5RWill]

Re: AICS 10rd .308 Mag feeding inconsistency?

Here's what i could do with my camera phone. The spacer is just under the feed ramp. Reloaded five rounds and had 1 jam out 5 cycles did this three times.

 

[ctressler]

Re: AICS 10rd .308 Mag feeding inconsistency?

Based on your pictures, it doesn't look like bending the feed lips isn't going to fix your problem. Trying a different mag is a good idea, maybe borrow one just to see how it lines up. However, you will likely need to adjust the bottom metal or remove material from the feed ramp.

 

[LoneWolfUSMC]

Re: AICS 10rd .308 Mag feeding inconsistency?

If it were me, and another known good magazine did it, then I would just add a chamfer on the bottom of that feed ramp. Not a big deal, it's just metal.

 

[seanh]

Re: AICS 10rd .308 Mag feeding inconsistency?

Looks like the smith didn't finish the job...not worth the time it takes to box it up and send it back though. You just have to bring the feed ramp down and do some blending...very simple task.

 

[seanh]

Re: AICS 10rd .308 Mag feeding inconsistency?

Looks like the smith didn't finish the job...not worth the time it takes to box it up and send it back though. You just have to bring the feed ramp down and do some blending...very simple task.