Im having a problem with the trigger on this rifle. I bought it used a while back shot three boxes of factory loads thru it fine. On the fourth box the trigger ?like locked up, felt hard and the fireing pin never moved. Recocked it once to no avail. Second recock it fired. Fired for six rounds and did it again. Recocked ita half dozen times then and nothing. Still acts like some thing is locked up.

Anybody able to advise me on a simple fix?

Thank you
Al

NO IDEAS?????

Al

The kindest advice you can receive is to take it to a Gunsmith.

sounds like you sear engagement is off. the ruger trigger is rather simple and not adjustable. if the sear engagement is off you are probably in the market for a trigger

I didn't have the problem on mine that you are describing.

In my case, it might fire when the saftey was dis-engaged, or a not so sharp blow to the stock would also set it off.

The trigger only has one screw adjustment on it, and it sets both sear engagment and lbs pull on it. When I got it so that it wouldn't fire, I was then about a 5 lb trigger.

I ended up replacing it with a timney.

Since I bought it used I can not say if some one messed with the trigger or not.
I'm thinking I should get in touch with Rugar and see what they have to say.
I have a Rugar 77 tang safety in 243 I bought new. The trigger on it is real nice.

Al

Are you sure that the action screws are not over-tightened? Maybe debris in the bolt or a broken firing pin spring. The side of my bolts on my older 77's are machined slotted. Easy to lubricate but could let dirt/debris in.

I have worked on the Ruger 77 Tang safety style triggers many times.

First of all they are not a simple one adjustment screw trigger. They have 3 differant adjustment screws (one is hidden) and are rather complex compared to conventional designs like Remington. Actually if you study them carefully you will realize they are a near genius design by Ruger.

Because of their complex design they are often really screwed up by amatuers.

Nomo4me gave you the best advice, to take it to a competant gunsmith.

From what you describe, somone has tinkered with the sear engagement which affects the overtravel.

I think Ruger went to their terrible over simplified design they have now due to too many people that did not know what they were doing tinkering with them. This was their attempt to make them idiot proof.

Notice to Owners of Ruger
M-77 Bolt Action Rifles
The trigger overtravel adjustment set
screw (shown on right) in a few of these
rifles may not be securely tightened and
may move too readily. This change in
original adjustment can, in extre m e
cases, either cause the rifle to fire unexpectedly
(with the safety “off) or cause
the rifle to not fire at all. This may occur
suddenly, without warning.
Current production rifles have this
set screw permanently secured. These
rifles have a “T” inscribed on the underside
of the bolt handle. This condition cannot occur in any of our other
firearms, such as the 77/22, 10/22, No. 1, No. 3, or the .44 Carbine, as their
trigger mechanisms differ.
For your safety, we ask that all owners of M-77 rifles (except those with a
“T” underneath the bolt handle) contact us, using the coupon below.
You will receive a new locking screw that will replace your present overtravel
adjustment set screw and detailed instructions for quick, easy installation.
There is no charge for this service and replacing the screw will have
no adverse effect on trigger pull.
Do not use your M-77 rifle until you have received and installed the
replacement screw.
SINGLE COPIES OF INSTRUCTION MANUALS FOR ALLMODELS OF RUGER FIREARMS ARE
AVAILABLE ON REQUEST - PLEASE SPECIFYMODELFOR WHICH YOU REQUIRE A MANUAL.
STURM, RUGER & Company, Inc.
140 Lacey Place
Southport, Connecticut 06490 U.S.A.
ALL RUGER FIREARMS ARE DESIGNED AND MANUFACTURED IN RUGER FACTORIES IN THE UNITED STATES OF AMERICA
Please affix to a postcard and mail to:
Sturm, Ruger & Company, Inc., Dept. M-77
140 Lacey Place, Southport, Connecticut 06490
NAME
(Please Print)
STREET OR P.O. BOX
CITY STATE ZIP
Number of M-77’s owned: List serial numbers here:
Ruger M-77 Rifle

Al

Mine has that T on the under side of the bolt.

Al