The Down Range Forum
Member Section => Handguns => Topic started by: tommy tornado on June 22, 2010, 11:17:19 AM
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Do you guys know if the Taurus PT-1911 takes standard 1911 barrels (with fitting of course) or do they make their own barrel to different dimensions? I just notice mine is developing a lip at the 6 o'clock position on the back end where the cartridge is fed into the chamber. It hasn't effected much yet but it might.
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Tommy, you should be able to stone that out, (even inside the chamber , but you need smaller , more expensive :( stones ).
Then I would take a look to see if the part hitting it, to cause the galling, was also developing a burr.
You say it has not effected your accuracy, ( or lack of :D ) so I would hold off on changing parts as it could simply be the mechanism is "custom fitting" the parts, by beating out the accumulated tolerances.
To try to explain, designers design things to fit at a "mean Dimension" but there is a little leeway usually around +/-.005
If 2 parts that impact each other are BOTH +.004 they are both perfectly good parts, but they are over that "mean" design dimension by .008 so as they hit or rub on each other during operation they will force out that excess material, kind of the way cases "grow" during reloading.
Just a little more extreme version of wearing in.
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TT, shouldn't be doing that! I would call CS at Taurus and check with them. Tell them you only using factory ammo!
FWIW
Richard
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Taurus 1911 parts do interchange with "regular" 1911 parts with the normal minor fitting that any 1911 would require. That being said unless you want to do some type of upgrade like a National Match type barrel or similar then do what ellis said and contact Taurus. If it needs repair or replacement they'll do it for free. Taurus's warranty is its biggest value in my opinion, might as well take advantage of it.
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If I replace the barrel, then yes it will be with a match grade barrel. I also might go ahead and put a Wilson hammer on it and replace the Taurus ambi-safety. I have heard the safety breaks on many of them. The hammer I don't like the extra safety on it.
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If I replace the barrel, then yes it will be with a match grade barrel. I also might go ahead and put a Wilson hammer on it and replace the Taurus ambi-safety. I have heard the safety breaks on many of them. The hammer I don't like the extra safety on it.
I'm not a fan of the taurus safeties either. At least it's more unobtrusive on the back of the hammer than it is on the frame. I always said if I ended up with a Taurus 1911 that hammer would be the first thing to go.
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Tommy, can you get a picture, if I interpret you correctly, the feedramp at the mouth of the barrel is developing a lip, not the frame, the barrel? That is unusual, and I would think is coming from 2 parts that normally do not contact each other, like the slide hitting, I have never seen that at all, I have not handled a Taurus yet, does it have an extended feed ramp like a Para, or just the normal .45acp 1911 feed ramp.? I do agree with a lifetime warranty you should probably send it back, but I would call Taurus 1st and just find out if they are seeing this alot, my 1st inclination is the feedramp is too long, but would like to see a pic before passing any judgement as I have never seen a too long feedramp, but there is always the 1st time.
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I can't get a good picture or it. My camera won't focus up close. Upon further review it looks like it was dropped or just a rough finish. I'll see if I can find a better camera with one of my neighbors this week.
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Does it have the gap from the frame to the barrel throat like in the picture below? If that dimension is too shallow, the problem could be stemming from there.
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Nice camera, I tried a shot like that but it came out way too blurry. The back of my barrel is rougher looking than that one, Pegleg. I am debating about upgrading to a match grade barrel, or leave it as is and buy an STI Spartan sometime this fall. I seem to like 1911s with billboards on the slide.
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Nice camera, I tried a shot like that but it came out way too blurry. The back of my barrel is rougher looking than that one, Pegleg. I am debating about upgrading to a match grade barrel, or leave it as is and buy an STI Spartan sometime this fall. I seem to like 1911s with billboards on the slide.
That was a stock photo I got from an old website years ago for demonstrating 1911's in a power-point presentation for a friends gun class.
As for your barrel throat and ramp, you can smooth it up a good bit with red jeweler's rouge and a cotton buffer on a dremel tool without fear of removing too much metal. As long as you have that little 'shelf' between the frame and the 6 o'clock edge of the barrel throat (around 1/32" or so).
Below is my old (1974) Series 70 Colt that has had thousands of rounds fed through its factory barrel after I originally polished it and still has a smooth polish on it (best shot I could get with poor lighting, it is way smoother than it looks in the photo).
Here is part of an article on 1911's that has some pertinent info:
Now place the barrel into its slot in the frame and push it back and down until the link support legs contact the back of the slot in the frame. The barrel should rest on the curved support surfaces of the frame. Note the gap between the bottom edge of the feed ramp in the barrel and the forward edge of the feed ramp in the frame. This gap should be at least 1/32nd of an inch, and could be as much as 1/16th of an inch. If there is a smaller gap than this, (or no gap at all), the chambering cartridge can and probably will hang up on the lower lip of the barrel’s ramp. That gap is absolutely crucial to smooth chambering. If the gap is not at least 1/32nd of an inch, the solution is to file the bottom of the barrel feed ramp back until that gap is achieved. Then the ramp is re-shaped carefully with files or a Dremel grinder so that the barrel feed ramp is once again close to the bottom of the barrel. Be careful – do not extend the ramp much, if at all, deeper into the chamber, and keep the same upward angle as before. In the 1911 design, the ramped barrel leaves a portion of the case unsupported, and if the ramp is too deep, it increases the possibility of a case blowout. This could have serious consequences for the pistol and for you!
http://www.sightm1911.com/lib/tech/reliability_secrets.htm