Home Forums Hunting & Shooting Gunsmithing Winchester Model 70 MOA trigger

like i said, those springs vary in pull weight!... but most of the problem is the rough contact surfaces in the MOA trigger... careful smoothing & polishing of the contact surfaces(including the ends of the sear return spring & the sear surface it rides on) will greatly reduce pull weight & improve consistency... "Ten+ BACO's" aka bsa, say's all of his Ernie's springs pull @ 2 1/2 lb or better and are consistent Too!, also says there's no pulling the trigger apart and "fine tuning", not going to happen!... LMFAO!, glad i didn't know that before i fixed my 3 MOA's... PS: i also considered the Timney trigger, but i don't like the straight trigger piece shoe on those, much prefer the curved one on the factory trigger... that's when i got down to business and figured out how to improve the MOA...

M-CARBO also has a 2 spring kit for the MOA (box) trigger which also includes a sear return spring... i find them lighter & more consistent on average than the Erniethegunsmith spring based on the 3 of each i've bought...

The fit and finish of the trigger internals are the biggest player. That's why sometimes springs give varying results...they can only do so much against the sear angles and engagement surface finish.

Yep!... Thank's for chiming in Sir... it's all about the friction!...

I have some open stock spring from McMaster Carr that works well. There's a corelation between firing spring pressure to the lower limit of trigger sear pull weight, too.

Good shootin' -Al

Wolff springs had a big pack of small springs for the same cost as a mcarbo. Take the factory spring out, find one lighter but similar diameter, cut to length and reinstall. 2# no problem. These triggers are quite good once lightened. Order a stronger striker spring from wolf while you’re at it. Another nice improvement.

AU7mm08,
I agree that the MOA trigger is garbage. I tried installing an aftermarket spring and didn’t have any improvement that was satisfactory. Then ordered the Timney and the ergonomics are not the same as the Winchester trigger. Not satisfied.

Another option that I have considered is JARD trigger.

I put an Ernie spring in my MOA trigger with no noticeable improvement - maybe 1/2 lb reduction. Can't get a nice, crisp break. Tried the Timmy and, as others have noted, the trigger shoe sucks, especially on a hunting rifle.

Question for the spring-snipping experts. Every spring I've seen has a full turn and the ends. This would seem to provide better contract with the surfaces it sets and pushes against. Now when you start clipping on them, don't you end up with a needle point that now bears against these same surfaces. This just doesn't seem good to me.

Snipping a spring to length hasn’t given me problems.