Matrix pro 2 1.2 barrel help

[kbiss]

Just tried to install my vudoo 360 action with 1.2 kriegar barrel and had slop in action with mpa action bolts supplied. Any answers? Thanks

 

[hafejd30]

There’s a video on YouTube where a guy moved from a MPA comp to a matrix. Had some slop as well and just centered up and tightened bolts. Following as I’ll be installing my B14R in a matrix pro II very shortly. Thinking 40 inch lbs torque which is what my MPA comp is torqued to currently. Followed by 30 inch lbs on the lug lock

 

[David Lott]

Just tried to install my vudoo 360 action with 1.2 kriegar barrel and had slop in action with mpa action bolts supplied. Any answers? Thanks

Slop as in side to side or up and down?

 

[hafejd30]

At about 12:50 in the video I’m assuming is what he’s referring to

Unless he’s referring to it having slop after being torqued down. Which would indicate the action screws bottomed out in the action most likely

 

[kbiss]

Up and down

 

[hafejd30]

Up and down

Did you put the lug lock in?

Is the slop still there after torquing the chassis down?

 

[kbiss]

Yes I did torque the action screws

 

[hafejd30]

Yes I did torque the action screws

If they’re torqued and it still moves chances are the screws are to long

Did you install the included washers as well?

 

[kbiss]

They didn't include washers

 

[David Lott]

They didn't include washers

needs washers,check your packing again.

 

[David Lott]

Did you put the lug lock in?

Is the slop still there after torquing the chassis down?

Lug lock doesn't work with a Vudoo action, lug is too short.

 

[hafejd30]

Lug lock doesn't work with a Vudoo action, lug is too short.

Huh,

Maybe it won’t work with mine either then. Haven’t tried it yet. B14R here

 

[kbiss]

Thanks David but no washers. Nice to know i don't need lug lock

 

[kbiss]

So you think washers will fix issue?

 

[Jeffd]

So you think washers will fix issue?

Most likely

 

[hafejd30]

So you think washers will fix issue?

Your issue if you’re torqued down and the action/chassis aren’t tight is going to be the screws bottomed out. Either installing washers which are supposed to be in there (I believe) or shortening the action screws are your options

The real downside is the front screw on some actions bottom out on the tenon threads. Then you torque it down and jack up the threads. Which can make it difficult to remove the barrel down the road

 

[ma smith]

+1 Vudoo v22 front action screw is a blind hole. Will bottom out if the screw is too long.

In theory you can just shorten the bolt the width of a washer, but it is IMHO its a better idea to have a washer in the assembly.

 

[Shootin25]

Matrix Pro II
Vudoo and Rimx both required washers.
No lug.
65#’s on action screws.

 

[kbiss]

Yeah bought brand new from mpa and they left out washers. So I'm gonna grab some from hardware store tomorrow. Waited for barrel for 6 months from modacam. Can't wait to shoot it. Lol

 

[kbiss]

 

[hafejd30]

View attachment 8698518

Damn that’s a tiny lug

 

[Shootin25]

Damn that’s a tiny lug

That’s what they all say ….

 

[Shootin25]

Yeah bought brand new from mpa and they left out washers. So I'm gonna grab some from hardware store tomorrow. Waited for barrel for 6 months from modacam. Can't wait to shoot it. Lol

Post pics in the pic thread after you’ve completed the build !

 

[hafejd30]

This is what should be in the pack for reference

 

[kbiss]

Should I use two washers on each action bolt.

 

[Shootin25]

1 per and check thread engagement on rear screw into action. If it looks right, that should tell you what the front screw is doing.

 

[Rob01]

The recoil lug is fine and all you need is the washers or you could just shorten the screws with a grinder but it takes some work. There should be no slop. I have a couple Vudoos in MPA Matrix Pros and both with 1.2” barrels. No issues.

 

[kbiss]

Appreciate all the help she's good to go. Shoots lights out thanks to modacams barrel work

 

[hafejd30]

Appreciate all the help she's good to go. Shoots lights out thanks to modacams barrel workView attachment 8699093

Plan to send a B14R action to him at some point. What you go with?

 

[kbiss]

Sent him 25 kriegar shoots great. Took a long time

 

[hafejd30]

Sent him 25 kriegar shoots great. Took a long time

I have a pair of B14R I’m building out. Plan to send the least accurate one for a Modacam upgrade. Depending how the other shoots and what the Modacam does I may do both

 

[kbiss]

Yes sir it was worth the wait. Only used one lot of center x and some sk yellow to sight in and was very happy. Can't wait to try some other stuff

 

[Shootin25]

Yes sir it was worth the wait. Only used one lot of center x and some sk yellow to sight in and was very happy. Can't wait to try some other stuff

Pics or it didn’t happen…….

 

[kbiss]

Yes sir look at few back on this thread

 

[TahoeDust]

Yes sir look at few back on this thread

I think he is referring to your groups...

 

[kbiss]

No didn't take any pics of groups but will