M70 RokStok

[walk2112]

Christmas in June

 

[Windblown907]

How was the fit? Looks great

 

[Speaks]

I got mine as well, though have not put it on yet. Was surprised to see only 2 screw holes given I ordered for two piece bottom metal. Hoping I dont have an issue when putting it together this weekend.

 

[SloppyJ]

Glad they're finally rolling in. From the class when I shot one, I noticed that I would need a bit longer LOP on mine and it looks like you found the same thing.

Interested in the fit on that and if you had to do any inletting. Planning on bedding it?

 

[NWBLKTAIL]

Did you have to do any relieving around the bolt release?
My M70 stocky VG needed some minor relief for bolt release but fit and function was spot on.

In know this is a rokstok but I’m assuming they used the same/similar inletting given they are stocky product.

 

[walk2112]

Yeah, I did have to do several little things to get the inlet correct, either with a dremel or rat tail file (open up action screw holes). Haven’t decided if I need to skim bed it or not yet, need to check and see that the flat area behind the recoil lug is bearing on the stock now.
Overall, the inletted shapes in general are very tight and seem like they’ll work great. The recoil lug is bound tight on front and rear by the inlet with no work. Have to shave a little off the sides of the rear tang recess (used a chisel to carve tiny thin layers until I could squeeze it in all the way) for example for the action to fit in which is no biggie and results in a super secure connection from action to stock.

That and the area left unpainted under the chamber portion of the barrel maybe? Not sure why else it’s not cerakoted but whatever this ain’t a show piece for a museum.

Here’s how it showed up:


Will post more photos of the in letting required

 

[walk2112]

Here’s some of the in letting work that needed to be done. (Front action screw hole was similar to rear I.e. offset by about 1/16”)

 

[walk2112]

Cont’d, with a couple small minor things that could be better but do not affect function, just aesthetically slightly annoying. (Ejection port bevel/relief, extra material cut from bolt handle area (super minor)).

Long winded download::
The one thing I want to highlight (Public Service Announcement) is this is a Timney trigger, which dimensionally can’t differ much from MOA trigger around rear pin (likely different than MRC), and if that little trigger relief area in the stock isn’t opened up more and a guy torques the action down and doesn’t notice, the pressure on the trigger box changes the sear engagement angle or something which results in the firing pin barely picking up and dropping as the bolt rides over it… I.e. firing pin is out when bolt chambers a round… could be a bad day if not caught.

I sent Stockys all these photos and description last night as soon as I discovered this to try and help them catch it going forward, but in case there are a few more stocks out there I hope the spirit of transparency is still alive and I’d post it here. Hoping they can tweak the inlet program to get these fixed. Wouldnt change the function of the stock one bit to fix it and open things up a little more in certain areas so it drops in cleanly, but would have saved me about 3 hours of futzing around working on it/test fitting and potentially prevent an negligent discharge someday.

Not to continue to jab people, but the red carpet card was checked on fit and function, which states ‘test fit barreled action’… if that’s true, that action wasn’t a newish Model 70 and/or didn’t have a bolt stop/pin/spring, trigger, or action screws attached to it at any time during test fit based on what I see. That, or there is a large variation in dimensions across Model 70s over the years or a push feed model was used or something like that.

I don’t mind a little inletting work, been doing it for years, the stock is awesome and I’ll continue to buy rokstoks because they kick ass for shooting and ergonomics etc etc.

I am really impressed with how tight the inletting is around the parts of action that’s usually require bedding and are critical to stability, zero retention of the system, and accuracy, so kudos there! Will test it out soon just have to whip up more of my known accurate handload first. Overall, for $600 and 11 months, I’m happy with it so far, just think there’s room for improvement.

 

[NWBLKTAIL]

That was a really good write up thanks for all the detail.

I as well had to relieve the trigger well area for the timney trigger on my PF M70.

 

[walk2112]

Update on the M70, after first trip to the range it was clear something wasn’t right with the bedding/stress in the action, POI was high right and erratic and I noticed later (duh) that the only two areas touching the stock other than the sides in some places were the little oval tang behind the rear action screw ‘block’/intended tang bearing area and the recoil lug itself wedged between front and back surfaces of the lug recess. So lots of stress when torqued down and it showed on paper. Shooting this gun with RokStok was awesome though, makes the 7-08 pushing 162’s feel like a 243.
Bedding it is! Pretty unreasonable I suppose to think a design with so many iterations and revisions over the years would be able to have a drop in fit with no work to make it right, so no big deal. Will update with post bedding results, I think it’s going to turn out great at end of day.

 

[walk2112]

Update: Got the stock bedded with Devcon (my go to) decided to bed the whole chamber area that was left not cerakoted on the stock because the forend is stiff enough I figure a little support/fixity there couldn’t hurt on a featherweight barrel. The rear tang and the area behind the recoil are inletted deeper than my receiver (maybe MRC 2022 inlet?) so bedding was the answer for sure. Sucker ain’t moving now and is stress free.
Tested out at the range and the rifle is back to shooting just like it used to with factory ammo (thankfully) so next is order some hand loads.
It’s a 7-08 so I’ll whip up a batch of the trusty 140AB over Big Game because it’s the rifles favorite to prove things out (thanks to Pharmseller there) and continue my attempts at 162 eldm and 150 ELDx with H4350, Varget, 8208XBR, and maybe IMR4451… barrel is picky but when I land on one it likes, it’s really good.

 

[uwantasandwich]

Update on the M70, after first trip to the range it was clear something wasn’t right with the bedding/stress in the action, POI was high right and erratic and I noticed later (duh) that the only two areas touching the stock other than the sides in some places were the little oval tang behind the rear action screw ‘block’/intended tang bearing area and the recoil lug itself wedged between front and back surfaces of the lug recess. So lots of stress when torqued down and it showed on paper. Shooting this gun with RokStok was awesome though, makes the 7-08 pushing 162’s feel like a 243.
Bedding it is! Pretty unreasonable I suppose to think a design with so many iterations and revisions over the years would be able to have a drop in fit with no work to make it right, so no big deal. Will update with post bedding results, I think it’s going to turn out great at end of day.

is it though? i just got mine in the mail yesterday and its going to need some work in the same places to get it to work. its actually really not even that close to being able to fit. genuinely asking the question as this is my first aftermarket stock

 

[Formidilosus]

is it though? i just got mine in the mail yesterday and its going to need some work in the same places to get it to work. its actually really not even that close to being able to fit. genuinely asking the question as this is my first aftermarket stock

Yes, it is unreasonable. There are 7-8 different designs that I know of- and I don’t have that much experience with them comparatively. It is unrealistic to make an inlet for every combination available.

 

[9.3koolaid]

Yes, it is unreasonable. There are 7-8 different designs that I know of- and I don’t have that much experience with them comparatively. It is unrealistic to make an inlet for every combination available.

What's the combo that does fit as is then? They're test fitting it to something

 

[Formidilosus]

What's the combo that does fit as is then? They're test fitting it to something

I’m not positive, but I believe it is the current production M70’s. But it’s also possible that they are a hybrid inlet that is set to allow fitting to all.

 

[uwantasandwich]

I’m not positive, but I believe it is the current production M70’s. But it’s also possible that they are a hybrid inlet that is set to allow fitting to all.

seems like its probably a hybrid then. mine is a portugal extreme weather and only about 5-6 years old which i believe hasn't changed

 

[Formidilosus]

seems like its probably a hybrid then. mine is a portugal extreme weather and only about 5-6 years old which i believe hasn't changed

I don’t know. There are so many variations of actions, tangs, bottom metal, etc. that one has to expect to fit and bed an M70.