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Adjustable Model 70 Trigger
Adjustable Model 70 Trigger
We all know that the Model 70 trigger can be adjusted with little difficulty for overtravel and for weight of pull.
And of course there are folks with great skill who will adjust the trigger for lenght of pull (creep by some) either by stoning down the sear nose or stoning down the sear slot.
What I am wondering is whether anyone has ever tried to make the trigger adjustable by drilling and tapping for a very small set screw that can be adjusted up or down, and upon which the sear itself rides. This could be adjusted up if you wanted less creep and down if you wanted more creep.
Anyone every tried it?
Many years ago, I bought a small drill and tap to do that. The trigger was to hard to drill with my equipment so I ended up stoning it.
quote:
Originally posted by 22WRF:
We all know that the Model 70 trigger can be adjusted with little difficulty for overtravel and for weight of pull.
And of course there are folks with great skill who will adjust the trigger for lenght of pull (creep by some) either by stoning down the sear nose or stoning down the sear slot.
What I am wondering is whether anyone has ever tried to make the trigger adjustable by drilling and tapping for a very small set screw that can be adjusted up or down, and upon which the sear itself rides. This could be adjusted up if you wanted less creep and down if you wanted more creep.
Anyone every tried it?
Not yet anyway, have I ever met a person who, having felt a good crisp trigger, wanted to increase the creep in their trigger. Not yet. But of course, the day is still young...
Malm
Well, You just met one. I recently purchased another 70 classic, this time a SA .308 compact I guess they call it. That thing seems to have just a bit different trigger on it. The shoe isn't as big, thats for sure. And the darn thing is set so light that I don't think its safe. I know I can fix it by deepening the slot once again, but was thinking I should somehow make it extra deep and figure out a way to get an adjustable screw in there.
quote:
Originally posted by 22WRF:
Malm
Well, You just met one. I recently purchased another 70 classic, this time a SA .308 compact I guess they call it. That thing seems to have just a bit different trigger on it. The shoe isn't as big, thats for sure. And the darn thing is set so light that I don't think its safe. I know I can fix it by deepening the slot once again, but was thinking I should somehow make it extra deep and figure out a way to get an adjustable screw in there.
I see your point.
21 June 2006, 02:37
vapodogquote:
And of course there are folks with great skill who will adjust the trigger for lenght of pull (creep by some) either by stoning down the sear nose or stoning down the sear slot.
I put them on a surface grinder and reduce the step by almost half.....creep is still there but no one notices.....
One can also just add a Timney trigger...it takes a bit but is a fine trigger.
Stoning just isn't for me....surface grinding gives control of flatness and dimension to w/n .0005.....
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quote:
Originally posted by vapodog:
surface grinding gives control of flatness and dimension to w/n .0005.....
That much huh?
There is a drawing somewhere that an AMU modification to the M-70 trigger for target work. I belive it involved another screw D&T into the rear of the trigger and produced a 1.5 -2 # trigger with "no" creep
21 June 2006, 05:37
vapodogquote:
Originally posted by malm:
quote:
Originally posted by vapodog:
surface grinding gives control of flatness and dimension to w/n .0005.....
That much huh?
It's an older grinder....
did you have something to add?????....to contribute to the thread???
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"Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery."
Winston Churchill
quote:
Originally posted by vapodog:
It's an older grinder....
did you have something to add?????....to contribute to the thread???
No more than you.
21 June 2006, 06:19
vapodogquote:
Originally posted by malm:
quote:
Originally posted by vapodog:
It's an older grinder....
did you have something to add?????....to contribute to the thread???
No more than you.
being an asshole again...huh?
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"Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery."
Winston Churchill
21 June 2006, 06:41
Rick 0311What in the world would a fulltime working gunsmith with decades of experience possibly have to contribute to any discussion on the GUNSMITHING forum?????????
Geez, you’d think the guy would know his place!
Now Boys, lets behave.
I think that Malm was only trying to imply that most people don't have a surface grinder to work their model 70 triggers. I don't think he meant any disrespect to Vapodog.
No need to get worked up and call each other names. Leave that to guys like me and Rick.
Actually, I was a little baffled how a precision machine such as a surface grinder could not hold tolerances any closer than that in such a short (.250 inch) move. That's why I asked. Why Vapo reacts like this is beyond me...
Looks exactly like that which 22WRF had described!
25 June 2006, 23:24
Rick 0311quote:
Originally posted by malm:
Looks exactly like that which 22WRF had described!
Hey, seek and ye shall find!
Exactly what I have been looking for. Just goes to show that there are some great minds out there that think like mine.
Only problem is that there goes the college educations of a lot of good kids who have Smiths for Dads and Moms.
26 June 2006, 04:18
JaywalkerI'm missing something again. 22WRF has a too-light trigger, but is increasing the creep the way to resolve it? I would think a heavier trigger spring would fix that the problem easily, even if the adjusting nuts run out of play with the standard spring.
Jaywalker
quote:
Originally posted by Jaywalker:
I'm missing something again. 22WRF has a too-light trigger, but is increasing the creep the way to resolve it? I would think a heavier trigger spring would fix that the problem easily?
Jaywalker
Not too light of a pull weight. Too close to the edge of the sear. Afraid a light jar of the rifle will set it off. Fixable, but it shouldn't have gotten that far in the first place.
26 June 2006, 04:39
djpaintlesOne of the beauties of the Model 70 trigger is it's functional simplicity. I noticed the Rifle Basix trigger before but it seemed like too much added where it's not needed. Kinda like putting Spinner mags on a Jaguar E-type. I'd rather have a better made version of the original. Wisner's maybe?...............DJ
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