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Posted: 6/7/2007 3:40:41 PM EDT
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Do the PTR91s chew up brass, making them unreloadable?? What type of ejection system do they use, gas or piston? TIA, Brett |
The rifle functions via a delayed roller blowback action (recoil operated). The chamber flutes assist in extracting the cartidge case from the chamber. The extraction/ejection process is, by nature of the type of action, a violent process resulting in dinged up brass. The majority of the brass is thrown approx. 15 to 20 feet from the rifle. The fired brass also has the tell-tale marks from the fluted chamber. Refer to world.guns.ru/assault/as12-e.htm and world.guns.ru/assault/as60-e.htm for more info. It's a great rifle... 
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Not so. I have two PTR 91's. The one has an 18" barrel. It slams the brass against the rear of the ejection port and dents or bends some of the brass, but not all. I put a port buffer on this rifle and all the brass is now unmarked save for the gas flute patterns burned along the surface. All this brass is now reloadable. The second rifle is a 16" barreled carbine. It has never put a dent in any of the brass ejected from it. It has the gas flute burn pattern and since the flutes in this rifle's chamber are a bit deeper, the brass has some raised ridges where it flows into the flutes. All of this rifle's brass is reloadable. The biggest problem for the carbine (and true for most unbuffered G3 type rifles) is the fact that a lot of brass can be lost. Brass is launched out 15-25 ft to the 2 o'clock position from the rifle. All of this depends on the individual rifle. |
All so true. I recently saw a couple of auctions for port buffers and couldn't believe the prices. I got mine about a year ago for $50.00. That package still had the price sticker from the 1980's on it---$19.95. And they truly will mess up a finish when placing on or removing from the rifle. I knew that I'd be leaving the buffer on my particular rifle. |
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