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Forum Index > Optics > Burris Posi-align rings on alloy base?

Burris Posi-align rings on alloy base?

22 Mar 2016
@ 07:45 am (GMT)

Ben Law

Has anyone used the burris posi-align rings on aluminium bases?

I'm looking to increase cant by about 15moa.
I have always used aluminium rings on aluminium bases.
Are steel rings likely to chew into the aluminium and come loose?

Replies

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22 Mar 2016
@ 04:13 pm (GMT)

Bryan Webster

Re: Burris Posi-align rings on alloy base?
Less the idea of it causing physical damage and more the concept that corrosion becomes an issue between the two metals. I have always went steel to steel and doubt I will ever do anything different.

The only time I saw aluminum rings and bases that made sense to me was on a Ruger 10/22 which has an aluminum receiver.
22 Mar 2016
@ 04:22 pm (GMT)

Bryan Webster

Re: Burris Posi-align rings on alloy base?
By the way Ben, I have a 20 moa steel Farrell picatinny rail and steel Burris rings on my .308. They work but I have no need for the extra cant in them, Burris makes a new set of rings that seem to me to be better called the XTR Signature rings, and I figure they are aluminum alloy. If you put a EGW aluminum rail on your rifle these rings would do you well.

http://www.burrisoptics.com/mounting-systems/rings/xtr-signature-rings
22 Mar 2016
@ 08:23 pm (GMT)

Martin Taylor

Re: Burris Posi-align rings on alloy base?
I have these rings on both and had no problems Ben, never came loose or lost zero when fitted following Nathans instructions.

The couple of alloy 2 piece base sets we have are covered with a black coating(?) and this has not worn off. Nathan has also recommended an EGW alloy base with these ring sets to me for a Tikka we had if needed.
23 Mar 2016
@ 05:02 am (GMT)

Warwick Marflitt

Re: Burris Posi-align rings on alloy base?
Hey Ben. Dan at Reloader's sold me an EGW 20 MOA Alloy base and Signature z rings looks to be well made. As long as you insulate or bond the dissimilar metals and keep it clean and lightly oiled it shouldn't be a problem. Aluminium and copper don't mix well though. Add salt water and you have a battery!
24 Mar 2016
@ 01:12 am (GMT)

Ben Law

Re: Burris Posi-align rings on alloy base?
thanks guys.
ill get myself a set of these rings.
I have a few egw alloy rails, so good to know these will work well with them.
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