600 grit for scope mounting

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15 February 2010, 00:40

Abob

600 grit for scope mounting

Is it still a recommended practice to add a little 600 grit to the tube when mounting a scope to a Big Bore rifle? If so, what caliber do you start?

15 February 2010, 01:09

JBrown

You could, but why not use rosin?

I believe RIP and others have had good luck with silicon.

I have used a tiny drop of locktite on the bottom ring. I don't know if it did any good, but the scope did not move.

Jason

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15 February 2010, 01:57

ted thorn

If your rings are lapped I would think it shouldn't be needed. But I don't have a true big bore rifle.

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15 February 2010, 02:07

Abob

Ted, I have Kimber QR rings; I added 600 grit as recommended in an article I read when I mounted my 1.5x5 Leupy years ago, never had it slip; same article recommended LocTite, just wondering if adding grit to embed in the tube is a good idea since LocTite is no longer favored by some of the more respected gunsmith's on AR

15 February 2010, 02:43

Duane Wiebe

Mark Cromwell recommended "Liquid electricians' tape" Really works and no damage to anything

15 February 2010, 04:48

Abob

Duane, what calibers do you use it on?

15 February 2010, 05:10

Duane Wiebe

You can use it on anything, but I'm sure to use it on any heavy kickers.

If you remember the Buehler rings? They had a coating inside.?.kind of similar to this product. As you know, those rings held "anything you could shoot from the shoulder"

15 February 2010, 05:42

Abob

Thanks, it sure sounds easier than scraping the grit off the paper & getting to stick on the tube

15 February 2010, 06:02

JBrown

quote:
Originally posted by Abob:
Thanks, it sure sounds easier than scraping the grit off the paper & getting to stick on the tube

Just think if you add some 600 grit the the liquid electrical tape.... No problem getting the grit to stay where you want it.

15 February 2010, 06:39

Woodhits

In his Powder Keg column several years ago, Ross Seyfried recommended using a 3M product called Scotchcoat. I have used it on a few rifles and it works quite well.

15 February 2010, 20:00

Westpac

quote:
Originally posted by Abob:
same article recommended LocTite, just wondering if adding grit to embed in the tube is a good idea since LocTite is no longer favored by some of the more respected gunsmith's on AR

Before doing anything drastic, I would first ream and true the rings to make sure there was full contact with the scope tube, and then if I felt I needed more than that, I would use a little loctite on the tube. Tube only! Anyone who would affirm the use of an abrasive between the tube and the ring, while at the same time object to the use of loctite for the same purpose doesn't have much of a "grip" on the problem.

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16 February 2010, 05:34

Recoil Rob

I'm no pro but I have lapped rings and then coated the interior with plain rubber cement. Haven't had one shift...yet.

16 February 2010, 07:48

Blake 70

Scothcoat is the cure. Use some Goof Off to clean up after tightening the clamping screws. Worked great on my 450 Dakota.