RAR 16" reciever slipping in v-block

[JM_OH]

Hello all, New to the forum and looking for advice. The problem i am having with my RAR 16" is the reciever is slipping in the v-block. There is .015 free play in these v-block to reciever arrangements and even with the takedown bolts torqed to 50inch pounds the reciever slips slamming the safety tang into the stock sending a massive shockwave back thru the optics causing scope mount slippage. I put this rifle into a stockys LRT stock and the safety tang is actually puckering the wood. Any advice would be appreciated. A little more info is that the aluminum bedding block in the LRT is only providing about 50% surface contact between the v-blocks. Would it be wise to try a little marinetex on these surfaces and in the .015 end play or would the miniscule amount not be suficient?

[GaCop]

I can't hurt to bed the action into the V blocks.

[Hoot]

I'd be talking to Stocky's.
That stock is usually highly regarded. Forgive my ignorance about 450b bolt action types but doesn't the RAR have a recoil lug and doesn't the Accublock accommodate one? If Yes to both, bed the recoil lug alone before bedding the entire action, to see if that helps.

Hoot

[JM_OH]

Well ruger machines a .030-.040 recess in the v-blocks intesd of a recoil lug and in these recesses lies the .015 free play.

[JM_OH]

I have been in contact with keystone they make the stock and were not aware of the issue and they gave me permission to try bedding the v-blocks. Im not sure that such a thin amount will be effective.

[Hoot]

Well ruger machines a .030-.040 recess in the v-blocks intesd of a recoil lug and in these recesses lies the .015 free play.

Wow! I would not have imagined that they would omit a real recoil lug for a powerful caliber like the 450b. I don't imagine that it increased their profit margin that much.

Hoot

[GaCop]

Well ruger machines a .030-.040 recess in the v-blocks intesd of a recoil lug and in these recesses lies the .015 free play.

Wow! I would not have imagined that they would omit a real recoil lug for a powerful caliber like the 450b. I don't imagine that it increased their profit margin that much.

Hoot

Amen! That's just insane!

[JM_OH]

Probably why the RAR in 450BM is so harsh on optics. The plastic stock supplied would never show signs of this happening and probably would be even more harsh. I wiil try to post a pic of what took place after 4 rounds of factory ammo.

[JM_OH]

1_1_IMG_20200411_193810365-1 (1).jpg (65.51 KiB) Viewed 8330 times

Finally here is a pic of the damage..

[coyote wacker]

1_1_IMG_20200411_193810365-1 (1).jpg

Finally here is a pic of the damage..

That has happen to the Ruger 77 Hawkeyes with a laminated stocks in 375 and 416 Ruger's....sometimes only after a couple rounds....

I've also seen that happen to rifles after being shot in a Lead Sled with 2-25lb shot bags....Lead Sleds are hard on scopes and stocks....