Darn, forgot to pickup some.

 

Would spent casings be effective to diagnose feeding issues though without the bullet?

 

If you shoot and wear boots with treads on them, check the bottom of them, I always have some cases stuck in mine.

 

 

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Just tried my Taccom today and was a bit disappointed. I had quite a few FTF. It would get jammed while feeding the round into the barrel. I tried the federal stuff and CCI mini mags.

 

I also had an issue with the NFA lower trigger where it would not reset. I'm going to replace the crappy poly FCG when I get home with one of the spare ones I had in my LPK that I did not use.

 

I need to get some 22 snap caps to diagnose the feed issue. Buddy suggested polishing the end of the lip of the barrel.

What mags are you using?

Can you describe the feed jam a little more in detail?

Definitely put in a stock steel trigger and dump the plastic action parts. I have a Geissele in mine since the stock triggers are generally heavy and ill suited for shooting competitions. Unfortunately you cannot lighten a stock trigger with JP yellow springs or else it will start light striking heavily so an aftermarket trigger kit like a Geissele or a Timney 4#+ is the only options. Once you get a different trigger, try the gun again. If it was having an issue with short cycling because of that plastic trigger, that could be affecting feeding on the rebound stroke.

I was with VTEC testing out the Taccom. It looks like the chamber lip was protruding a bit far from the feed ramp and scraping the rim of the bullet going into the chamber. The brass rim was also catching on the breech face so the round would be canted into the chamber at ~30degrees. The bullet was already stripped and clear from the mag lip as you can drop the mag and the bullet would still remain in it's canted position. Upon close review of the jammed rounds, you can see lead shavings from the sharp chamber edge and an impression on the side of the bullet from the chamber lip.

 

So from my review and understanding of 1911s (if I can apply this same principle to the Taccom), it looks like the chamber needs to be throated a bit and polished to reduce the entry angle of the round and the bullet won't catch on the chamber lip causing deformation. Then the breech face would also need to be polished so the brass can slide more smoothly up the breech face.

 

Am I on the right track?

 

Good point on the FCG. There was a note I just remembered somewhere about the poly FCGs needing to be upgraded or modified for 9s and 22s. The trigger reset was horrible, and the hammer was quite heavy. Nothing slid smoothly. Seemed like the tolerances were too tight for all the components.

I replaced the poly FCG tonight with one of the stock ones I had spare. I also got snap caps while I was shopping at Cabelas over the weekend.

 

I loaded a snap cap and instantly got a failure to feed.

 

 

 

The mags are all Black Dog Magazines (2 regular and 2 X-Form).

I think you're right, the chamber is protruding a little too far there. Either the chamber is too long or the adapter is too short. Give Tim at TACCOM a call or email right away and he'll fix it asap. He's good people and stands by his product, even if you do blow it up with a squib.

Thanks, I did reach out to Tim. The upper is in transit to be looked at. That did look odd after I took the picture.

 

Kudos to Tim at Taccom to stand by his products.