TRP misfeeds?? - Pistolsmith
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Old 12-04-2008, 03:53 PM   #1
 
Join Date: Mar 2008
Posts: 23
TRP misfeeds??

Hey all. I broke in my TRP .45ACP today and was experiencing feeding issues. I use 3 different mags (Springfield, McCormick & Novak) and all 3 exhibited the same problem. I used 2 different makes of ammo and same result. After about 50 rounds I was getting feeds that were only 3/4 of the way seated. Sometimes the bullet was just barely seated fully (slide looked like normal) and the hammer would drop and go "click". Clear the chamber and rack a new round and no problems for say 12 rounds. Now I can not believe it is a dirty issue. After 100 rounds?? This model has a full length guide rod that screws in. Fully cleaned before shooting. Trigger is a little on the stiff side. Feels a lot more than 4.5 lbs of pull. But dang is this pistol accurate.
Any ideas on the feed issue? Lemme guess I need the ramp polished?? Kind of BS for a $1300 gun.

thanks
chris
 
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Old 12-06-2008, 05:45 AM   #2
 
Join Date: Nov 2001
Posts: 951
Re: TRP misfeeds??

Some of the other Hands on here can do this better than I can.....nobody has replied, I've got a few minutes so.....First thing is a $1300 pistol should run, just finished checkin' out a Tarus P T 1911, a $500 To $600 pistol and it runs.......I can fix any 1911 if I can hold it in My hands, Long Range Diagnois is a different doin'

Round doesn't seat all the way.....I would have pulled the barrel checked the chamber....chamber could need cleanin', I'd look the chamber over as good as possible, Feed ramp could need polishin'.....Check ammo very close (MIC. OR GOOD CALIPER) could need more crimp, Any factory ammo can be out of Spec

I've seen some people shoot with a grip that lets their thumb or thumbs ride against the slide, this slows the slide down, can keep the round from chamberin'

Stronger recoil spring.....New springs can go weak fast

A new pistol ?....What does the dipstick show ?...Untill it loosens up some, might be best to runn it drippin' MOBILE ONE SYNTHETIC....I'm bettin' this don't help much

Bill Caldwell
 
Old 12-13-2008, 03:51 PM   #3
 
Join Date: Dec 2006
Posts: 63
Re: TRP misfeeds??

Depending on your ammo, 100 rounds can be a dirty issue. A lot of crap can build up on the ramp that will slow down the feeding cycle. I polish the ramp for that reason. The crap slides out of the way if the ramp is slick. For 1300 you'd think they'd do that...
How old are the mags? I change mag springs like socks. Springs are cheap.
Dirty and/or match tight chamber?
Wouldn't think a recoil spring would go away that quick but you never know. I change recoil springs like socks. Already covered that.
How about the recoil lugs? Are they square on the edges? A small bevel will smooth things up some. Again, for 1300 you'd thought they'd have done that.
Hope this helps some.
As Bill said, long distance gunsmithing is like blind monkeys throwing darts.
 
 
Old 01-04-2009, 11:33 AM   #4
 
Join Date: Mar 2008
Posts: 23
Re: TRP misfeeds??

Just got my TRP back from Springfield and the 'smith:
1. Changed the Firing Pin
2. Tuned Extractor
3. Reamed Barrel

Taking to range next weekend to see how she works.

Happy Nw Year!
chris
 
Old 01-04-2009, 02:08 PM   #5
 
Join Date: Dec 2006
Posts: 63
Re: TRP misfeeds??

Reamed barrel? Was the chamber undersize?
Let us know how it turns out.
 
Old 01-05-2009, 03:40 AM   #6
 
Join Date: Nov 2001
Posts: 951
Re: TRP misfeeds??

Well I guess if You ream the chamber that could be considered barrel reamin' but I'd Hazard ( always wanted to use that word ) a guess They meant Chamber reaming. ..HELL OF A NOTE...As much as the TRP costs, all the write ups bye the pistol writein' prosti tutes, endorsed by T......R....and the pistol wasn't chambered correct. It would be interestin' to see chamber casts of the before and after. A lot of the time in chamberin' barrels , if it is not done right the first time, it is not right the second time. Pistol may run perfect but the accuracy won't be what it would have been had the job been done right the first time......Hope it works out for You

Bill Caldwell
 
Old 01-05-2009, 02:49 PM   #7
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Join Date: Apr 2001
Location: Alabama
Posts: 876
Re: TRP misfeeds??

From what I see and read, undersize chambers are endemic (means "all over the place but not bad enough to cause a panic and be an epidemic") in 1911 clones, copies, and mutants. I have had major name brand barrels that had to have the chambers reamed with a sharp new in-spec reamer to accept all standard ammo. I think the factories try to get too many guns done with the same reamer, and the aftermarket dealers want to advertise "minimum match chambers."

Extractor "tune" is also an adjustment often left to the buyer to sort out.

I wonder why they changed the firing pin, though.
 
Old 01-15-2009, 07:36 AM   #8
 
Join Date: Apr 2007
Posts: 13
Re: TRP misfeeds??

MY 1911 has a Clark bbl, as they come the chamber is very tight...it kind of worked like the OP's gun sounded like. The Pistolsmith that built it told me when we built it the chambers were tight, he wanted to run a reamer into it but I insisted on leaving it tight. It just plain did not work too good :-). Finally I took it back and he carefully ran his reamer in without deepening headpspace, that was 10 years and 10,000 rounds a go and the gun now runs flawless. Something people insist a tight 1911 cannot do :-).

Bill
 
Old 01-30-2009, 10:59 AM   #9
 
Join Date: Mar 2008
Posts: 23
Re: TRP misfeeds??

Just ran 300 rounds thru without one misfeed. Accuracy seems to be fine. My groups were not out of norm.
chris
 
Old 01-31-2009, 03:10 PM   #10
 
Join Date: Dec 2006
Posts: 63
Re: TRP misfeeds??

Just curious; did Springfield want to charge you money to "adjust" the pistol or did they do it under warranty?
Glad your pistol is running now.
 
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