Slamfire
I have a Winchester 110 in 243 that is two years old. It has roughly 600-800 rounds through it (mostly handloads) It has, onseveral occasions fired upon closing of the bolt. on these occurances the bolt has never been slammed or shown any force while closing. The first time happened in the hands of my son who was fortunately exercising good firearms safety practices and had the gun pointed in a safe direction. It did give him a good wakeup call though. He gave me that It wasn't my fault look and I assured him that I knew it wasn't as I was watching him very closely. After each occurance I have tried to duplicate the slamfire but have been unsuccessful. In each occurance handloads were used but I can find no sign that they were the contributing factor (no signs of high primers, ect). I'd like to hear some possible causes before I have to ship this gun to a smith (don't have one close). I sure don't want to let the son or anyone, use it in current condition.
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CORRECTION Savage 110 [:I][:I][:I] 0 -
You might have got hold of a bad lot of primers, contact the manufacturer for guidance.
Also, CCI makes what they call the #34 "Military Primer", specifically to be used in rifles that have a tendency to slam-fire. You might consider trying them out.0 -
did you mess with the factory trigger adjustment?
tell the truth now.....0 -
quote:Originally posted by wapo3030
did you mess with the factory trigger adjustment?
tell the truth now.....
My thoughts exactly... the primers should have nothing to do with the problem being experienced.
Bert H.
Real Men use a SINGLE-SHOT!0 -
...or did the factory trigger adjustment come loose? 0 -
Wapo, Bert and bobski have it. The cocking piece probably overroad the sear. This can be caused by the guard screws being turned in too tight, the adjusting screws being out of range on the trigger but more likely by dirt and debris in the trigger. That is unless you adjusted or attempted to adjust the trigger. In that case, you need to see a gunsmith to have it adjusted back to a normal mode of operation.
Best.0 -
Have not touched the trigger adjustments. Pulled the stock of last night and blew out and cleaned the trigger assembly but it appeared to be clean to start with. 0 -
I don't know a lot about reloading - but could this be caused by not seating the primer far enough? I've heard this type of scenario can happen if the primer is not set deep enough. 0 -
does this gun have a firing pin that rebounds inside the bolt? meaning....could the firing pin spring be broken causing the firing pin to bounce forward w/o spring tension on closing? all it would take would be just a little bit of that pin purtruding? follow me?
former air operations officer SEAL Delivery Vehicle Team 2. former navy skeet team, navy rifle/pistol team member. co-owner skeetmaster tubes inc.. owner/operator professional shooting instruction.0 -
It doesn't sound like a protruding firing pin, since the bolt was never forced shut; it just goes off as the bolt is closed. Primers could possibly go off with slow pressure, but in my experience, they require an impact to crush the pellet.
It sounds like the sear has been compromised, or the firing pin spring inside the bolt is overpowering the "cock" notch when the bolt is rotated upon closing.
I'd take some primed, but otherwise "inert" cases and chamber them the same way someone unfamiliar with that rifle would-it happened to your son-maybe that'll show you where it needs attention.
I'd also try and see if the bolt can be turned and cocked outside the receiver body, and look it over a lot.
If you know it all; you must have been listening.WEAR EAR PROTECTION!0
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