MK2 feed problems

[oldreliable45120]

I have a 5 1/2 bull barreled MK2 pistol. The problem I'm having is as follows. I cant get a full or 1/2 full mag to function properly. tried different mags, same problem. A fired case gets stuck in the chamber and the bolt strips a new ctg from the mag and I have to clear the chamber. I"m thinking it the extracter. What do you guys think?

 

[Luckyducker]

I think you need to make sure the pistol is clean and then try a different brand of ammo. The rimfire ammo that is available the last several years is notorious for not cycling through the semi-autos, whether rifle or pistol. I don't remember which brand my son finally found that would run his model 22 Walther, but I know he had to try something like 4 or 5 brands until he got one that worked.

 

[reakin]

Make sure the chamber is clean. Also, clean the indentation next to the chamber where the extractor fits into. Mine gets full of gunk and doesn't allow the extractor to slip out around the rim of the fired round to get a good "bite" on it during extraction. Some folks will recommend replacing the extractor with a Volquartsen or other after market extractor. Waste of money in my opinion if you keep everything clean.

reakin

 

[rugerguy]

sometimes when the extractor does NOT "grab" the case rim, it may need to be "fitted"...they are curved around the front to the 'tip' ...just gotta take a bit of 'curve' out, a couple of passes with a file and the 'tip' will grab the case rim better.............its this curve that goes into the ;'slot' at 3 0'clock (to the right ) of the chamber, if the extractor cannot get in there, ( like reakin suggested, clean out this slot) or remove some of the curve in the extractor leading edge....ta daa
( that why some of the aftermarket extractors work better, they are straighter and have a better "hook" ( tip).........Rugers are just stamped out and dropped in, ,little or NO 'fitting..............
you can 'test' the extracting function using 'dummy rounds'..... :wink:


Then make sure your magazines are adjusted properly and the following round is NOT up too high and interferring with the guns extraction,this can cause the "spent case' from coming all the way out to eject....... :roll:

Finally make sure there is NO crude (fouling) in the cutout in the face of the bolt ,so the bolt closes all the way ,and the case rim goes all in way into and stays in that relief cut,,, yes, crude can screw up the works and 22's are about the crudiest rounds out there ( ceptin Bulleseye powder users)

 

[Clovishound]

I've had my MarkI for many years. I started having problems with FTF and FTE, especially with a certain brand of ammo. I thought it was the ammo. To make a long story short, I hadn't done a complete fieldstrip and clean in a long long time, because the last time I did one, I had a very difficult time getting it back together properly.

Found the secret handshake of the fieldstrip on the internet. Disassembled and cleaned. No more FTF or FTE extract problems. Fieldstrip is a quick and easy process now.

 

[Chris]

Sounds like the ejector..BUT...as stated above, give it a good cleaning, strip it down if you can. If you can't email me I will walk you through it, its not hard all you need is some patience.
Had the same thing happen to my colt 380 government, I took a small, diamond file to the ejector and smoothed out a bur or 2 problem solved.
let me know how you make out

I usually polish the feed ramp, I found "mothers" polish is excellent for this

 

[Carry_Up]

Ejection problems are quite common for the Mark series pistols. First, let's give the OP the benefit of the doubt that he is capable enough to clean and lubricate his firearm. While it is true that any firearm can exhibit problems if it is dirty enough, spotless cleaning is not necessary for correct function. Nor does it make sense. After firing one round, you are no longer spotless. But I digress..

Here are the things to check. Fire one round of your ammo of choice. Assuming the case does not eject, pull it out carefully from the chamber by hand. Is the fired round stuck in the chamber? If so, you have:
1) an ammo problem
2) a burr in the chamber
3) a chamber that needs to be finish reamed to spec.

If the case is not stuck, the most likely cause is extractor slipping over the rim. This is common. The extractor hook has become negative with respect to the rim and cannot take hold. A bit of careful filing, or a new extractor hook will fix it.

One final check remains. You may have an ejection problem. The case may be coming out of the chamber, fails to be ejected and is then shoved back into the chamber once more. Check your ejector. It should be lined up with the barrel and rigidly riveted. Any play in the ejector will cause problems and needs to be fixed. Report back and let us know what you find.

carry_up

 

[Mobuck]

This is NOT a "feed problem" if another round is stripped consistently from the magazine.

If the case is still in the chamber and the bolt has picked up another round, IT IS NOT AN EJECTION PROBLEM.

The various remedies for extraction difficulties have been discussed.

 

[Carry_Up]

This is NOT a "feed problem" if another round is stripped consistently from the magazine.

This problem IS referred to as a failure to feed problem if the new round does not enter the chamber and the bolt (or slide) does not return to battery. Whether or not the top round is stripped from the magazine might, or might not, be part of that equation.

If the case is still in the chamber and the bolt has picked up another round, IT IS NOT AN EJECTION PROBLEM.

Again it pains me to point out that if the spent case does not exit the firearm, the problem is referred to as a failure to eject. Exactly what causes this failure to eject is of interest to gunsmiths. A good gunsmith does not immediately jump to conclusions.

If a spent case, as you pointed out, is in the chamber it might, or might not, have actually remained motionless. No movement of the case suggests an extractor problem or a stuck case. Another possibility, although less common, is that the case is pulled only partially from the chamber, after which it is pushed back into the chamber by the feeding round. Neither of these conditions prevent a round from being stripped from the magazine. That is why I suggested a bit of further testing.

-CU