RMW Extreme Build. It has begun.

[10mmfan]

I really wanna see them argue in court that a you become a felon based on how you hold a gun.

While I agree I don't want to go up against the atf in court.

[Hermit]

I really wanna see them argue in court that a you become a felon based on how you hold a gun.

While I agree I don't want to go up against the atf in court.

Eh they'll finally ban it after they get all the cheap surplus ammo dried up

[Pablo]

Lousy Picture:

[Pablo]

Close up of mags (one modified for 10mm and AR lower) and Underwood 200gr.



Here is my modified UpLula:

[Pablo]

This thing is fighting with me. Does anyone here know the products and got a 10mm running right? It's missfeed city right now. I shipped the upper back to Ron with the magazine. So close, yet so far!

[Hermit]

Let us know

[sstewart]

I expect it will come back to running well

[Pablo]

He is getting closer. The upper duplicated the issue in his lower when he went over 5 rounds. He thinks it's a  follower issue in his supplied mag. I  suggested he start with a virgin magazine and convert it.

[sstewart]

Any updates?

[Pablo]

Sorry I was negligent in responding. Bottom line is the mag follower was subtly wrong. The problem shows up more frequently the more rounds in the magazine 15-20 or more (Ron only shoots 5). Ron fixed the magazine and modified a virgin magazine for me. He said that one didn't need the tweak and KS magazines vary more than he thought. Basically you can't tell the follower is different/odd unless you take the magazine apart.

Also he fired a couple mags, one full auto with no hiccups. All his new builds will get more round tested from now on. I think he shipped it Wednesday.

Edit: added some info/fixed typos (posted original from phone)

[Hermit]

Thats good news...ill be waiting for some range reports

[Pablo]

EDITED.

Headed to the group pit shoot tomorrow.  As I stuffed the four magazines the whole issue became more clear. I think the problem mainly has to do with the feed lips. First of all the mags have subtle yet detectable differences. The round can hang on the tiniest burr. So first I knocked any burrs off then took the rough feed lip inner surfaces to some semblance of smooth with 600 grit. Eventually will do 1200 then polish, just no time right now. But already the lips are much smoother and manually sliding bullets out and manual feed much smoother, less problem prone, the round doesn't go to one side (hits burr) or straight up, excessive drag on feed lips.

Also of note, RMW hammered the exit (last) portion of the feed lips back in, as they were originally much wider. They "tips" are now actually closer to the original .45ACP configuration.

Can't see much in the picture. Left is unaltered mag. Right is as received from RMW in original altered condition:

[sstewart]

So how did it go? Did your gun run ok?

[Pablo]

No. 

I will post up when I get rid of that silly pistol tube and have an actual rifle.

[sstewart]

Bummer. Are you still having magazine problems?