Ring Height Help???

[bernerd257]

I just purchased a Trijicon Tenmile 4.5-30x56 and think I am going to go with the ARC M10 scope rings. I have a Borden picatinny rail to mount them on. I need some advice on the height of the rings I should get for clearance. High, medium, low?? If you have any you want to sell me that will work let me know. Thanks for you help.

 

[lancetkenyon]

Usually barrel contour does not matter, but if you have bigger than the standard 1.200" breech end, it could.

I have found that 34mm rings in the .92"-.94" will clear most 56mm objective scopes on almost any contour as long as it is the usual 1.200" breech. One exception is the Vortex Gen 2 Razor 4.5-27×56 with the weird length and scope body design. It takes 1.00" rings to clear.
For me, I would go with the 34mm "low" 24mm (.94") rings.

The other deciding factor is the turret bell diameter. A few scopes like S&B PMII and Swarovski X5 need more clearance under the scope to clear a full length Picatinny rail. Split rails are not effected.

Not exactly the same set up, but here is a Premier Heritage 5-25x56 in Seekins .92" rings over a Sendero contour barrel.

 

[bernerd257]

Thanks, thats a very nice setup.
It has a Borden Timberline long action with a Hells Canyon Armory heavy hunter carbon fiber barrel, Manners EH1stock. Don't know if that makes a difference.
Diagram of the heavy hunter barrel below.

Heavy Hunter:
A: 1.250
B: 3.0"
C: .860"
E: 27"
F: 7.5"
G: .980"

 

[Doc88]

M-BRACE SCOPE RINGS

americanrifle.odoo.com

Scroll all the way to the bottom of the page and it tells you how to determine ring height.

 

[bernerd257]

Thanks, I thought I read that whole page.