Ruger m77 tang safety issues

crapshoot said:
I just tried the sized/primed brass and was able to duplicate once out of 3 tries so brass sizing isn't out of the question.
Adjusting the overtravel screw out a 1/4 obviously didn't fix anything.
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I'd size & prime a few cases w/o expander ball in place and repeat, or get some factory ammo and give it a try.
 
I'll try that before spending money on factory ammo. Primers are cheaper.
Although i think i have a partial box in the safe from the last few years hunts prior to the trigger swap and barrel bedding.
 
Think i finally have this figured out. Not necessarily fixed but figured out.
The drag on the bolt closing definitely seems to be caused by the expander button. Easy fix. I'll just buy an FL/body bushing die.

Secondly is the hang fire issue. I think i have it nailed down to action binding/ poor bedding job (yup, i suck).
Temporary fix is loosening the middle action screw and some locktite to keep it from backing out. Eventually it will have to go to a qualified gunsmith to have it properly bedded and pillars installed.

Some actual live fire will tell if i have a grip on the issue.
 
Lance, the Winchester Mod 70 there is a third action screw which holds the floor plate in place and overtightening this screw can cause binding of bolt. I understand the 77 Ruger is patterned after the mod. 70 Win. Just how far Ruger went in copying, IDNK, but I do know about the mod 70 Win. If your rifle has a center screw, be sure it is not overtightened.
The following applies to Win., but bet it would work on the Ruger if center screw is present.

Tightening the Middle Action Screw on a Pre‑1964 Winchester Model 70​

On a pre‑64 Model 70, the middle (magazine floor plate) screw should be tightened only enough to close the floor plate — typically around 10 in‑lbs or less — and never overtightened Long Range Hunting ForumLong Range Hunting Forum+1.

Recommended Torque​

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I started at 10in# in the middle screw and still had to loosen it at least 1-2 full turns. Front screw is set at 55in# and rear at 35in# which is what i got from AI for a walnut stock.
 
I definitely would disassemble the bolt. There could be something in there, my thoughts are a tiny piece of primer. I have had soft primers blank, meaning the firing pin punches a hole in the primer like a paper punch. That tiny piece ends up in the bolt body and eventually will cause an issue.
 
204 AR said:
I definitely would disassemble the bolt. There could be something in there, my thoughts are a tiny piece of primer. I have had soft primers blank, meaning the firing pin punches a hole in the primer like a paper punch. That tiny piece ends up in the bolt body and eventually will cause an issue.
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Done. Didn't find much of anything other than old oil residue and what I'm guessing was dust and or carbon residue.
 
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