Buckmark misfires

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milemaker13

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I had been taking the buckmark to the range a couple times a week for a couple months when i first got it. It was great! Then i started to get FTF on a regular basis. It was more complicated than just that.. gun would fire, then the next trigger pull there was no hammer drop, the gun wasn't cocked. When racking the slide, the unfired round wouldn't extract (extractor didnt engage the rim, the round wasnt stuck at all). I'd get the round out and the rim had a very light strike...
What i think was happening is the hammer didnt engage the sear and rode the slide back home.

Now, the pistol had probably about a thousand rounds thru it. I was being lax about cleanings, but not neglectful. Some of the last ammo had excess wax on it (blazer, which has always been really good in this pistol) so i figured it was gummed up good. But i just stripped and cleaned it, and it wasn't that bad at all.

Also, the last cleaning or two i started using CLP (breakfree), kinda experimenting with it really. Im not impressed, so I've gone back to nitro+oil.

Has anyone had a similar issue with a buckmark, or any pistol? What did you determine the problem/ cause/ solution to be?

I'll be back at the range next week to see hows she's feeling.
 
Sounds dirty. Change ammo brands recently?
Sounds like a dirty chamber, preventing round from seating all the way, and, maybe the gun does not cycle properly?

My Buckmark has been solid - though I do not shoot it as often as you do yours. But I do clean it after every outing - which should not be necessary.
 
I agree, i figured it was just getting really dirty inside. . And it was, just not as bad as i thought it would be...

Ill report back after next range trip.
 
I've found the lube on the really greasy .22 ammo will slow the bolt down on my Buckmark... enough to have misfires and extraction problems. CLP might be a little to heavy for the Buck, I use Tetra, that seems to work better. I'm assuming you are taking the top rail off and cleaning the recoil spring and underneath the rail... a lot of powder residue and bullet lube winds up in there and will gum things up, too.

Don't discount bad ammo, either.... my Buck gags on the newly manufactured Remington Vipers, where it used to be some of the best ammo in it some years ago. I've gotten away from the cheapo stuff and pretty much stuck with CCI and Winchester Super-X.
 
No, i dont see any FP marks or peening on the chamber face .

I've tested several brands and types of ammo. Yes, cci mini mags are the preferred food, but the blazer (made by cci) was always good, but that last brick had wax build up on them. And that's when the problems started. I kinda thought about contacting cci about it.
Anyway, i will pull out a couple different types for the next trip.
I also agree that clp may have some hand in this. I wasn't impressed by the clp at all and have discontinued using it. Back to good 'ol #9.
 
...gun would fire, then the next trigger pull there was no hammer drop, the gun wasn't cocked. When racking the slide, the unfired round wouldn't extract (extractor didnt engage the rim, the round wasnt stuck at all). I'd get the round out and the rim had a very light strike...
What i think was happening is the hammer didnt engage the sear and rode the slide back home...
Click to expand...
Are you sure that the slide is all the way forward when the malfunction is happening? Because what you describe sounds more like a case riding in front of the extractor - that would explain why the hammer would not drop (engaged disconnector because the slide cannot close), failing to eject the cartridge manually and the light hammer strikes (extractor mark on the base). If that is the case then check your magazines and clean them thoroughly. A new, stronger magazine spring might be needed. Check the feed lips also if they have widened thus releasing the round earlier.
 
Mizar said:
Are you sure that the slide is all the way forward when the malfunction is happening? Because what you describe sounds more like a case riding in front of the extractor - that would explain why the hammer would not drop (engaged disconnector because the slide cannot close), failing to eject the cartridge manually and the light hammer strikes (extractor mark on the base). If that is the case then check your magazines and clean them thoroughly. A new, stronger magazine spring might be needed. Check the feed lips also if they have widened thus releasing the round earlier.
Click to expand...
Interesting , i can't say for sure. I will pay close attention to this today at the range.

Also, yes, those to screws do loosen easily.
 
My original '87 Buckmark... the rear top screw (they were a flat blade screw back then) always came loose and eventually eyed out the rear mount hole in the top plate. I've tried to come up with a solution, but I'll probably have to spend the money and just get another part.
 
Permatex Threadlocker Purple is made for small diameter screws, it's what I used on the mount when I installed a red dot on my Buckmark and the screws haven't loosened.
 
I've found the lube on the really greasy .22 ammo will slow the bolt down on my Buckmark... enough to have misfires and extraction problems. CLP might be a little to heavy for the Buck, I use Tetra, that seems to work better. I'm assuming you are taking the top rail off and cleaning the recoil spring and underneath the rail... a lot of powder residue and bullet lube winds up in there and will gum things up, too.
Click to expand...
The Buckmark is noticeably more sensitive to lube and goo than, say, the Ruger. I found that I could get the stated symptoms (caused in my case by the slide not fully cycling, aka short-stroking) by either using grease on the slide rails or letting the waxy goo build up too much.

I've had good luck with CLP on the Buckmark, but only when I used it on all sliding surfaces (including those on top of the slide/bolt).
 
Put 60 rds thru it yesterday. Started with 10 minimags, then a box of blazer . All felt really good and no malfunctions at all. I'm guessing a combination of clp , wax and grime conspired to slow the slide into short stroking . Ill update as new info surfaces. Thanks for your help gang:)
 
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