527 Scope Rings Height Question

[jmerchant1]

Hi guys, I just ordered a new 527 Varmint in .204 ruger. I already have a Vortex Viper HS (30mm tube) 4-16x44 scope I intend to put on it. I am going to buy a pair of the Warne permanent fixed rings next. Does anyone know for sure if Warne's medium rings wil clear the bolt, or should I go with the high rings to be safe.

For what's it's worth...according to the Warne website specs, the mediums in 30mm sit .425" above the dovetails and are recommended for 24-52mm objectives and the highs sit .535" above and are recommended for 50-56mm objectives. What confuses me is if my scope had a 1" tube instead of 30mm, the height specs are the same but the objective size recommendations change from 20-42mm for medium rings and 42-52mm for the high rings...why is that?

Anyone happing to be running this same scope setup on their 527 and can recommend the better rings size?

Thanks in advance!

[david s]

With your scope it comes down more to the ocular (the eye box) diameter than the objective. If the Vortex scope has a bulky eye piece then you may want to consider the tall rings. On the "RimfireCentral.com" forum in the CZ/Brno section there is a sticky where people list there scope/rings combinations. It's mostly rimfire but there is some 527 information also. It will take some digging though. A 30mm scope has a scope tube that's about 2/10th of an inch (30mm =1.18") larger in diameter than a 1 inch scope. If both the 30mm and 1 inch rings are .425 to the bottom of the scope tube then the center of the 30 mm scope is about 1/10th (radius is .9 inch higher) of an inch higher than a 1" scope. Because the scopes center is higher by about a 1/10th of an inch the objective can be larger in diameter by the same amount.

[Dink]

I have a very similar set up. 204 527 varmint with vortex 6-24×50. I used the warne medium rings and bolt clears scope just fine. Enjoy that rifle, mine shoots flys at 100yds.

[jmerchant1]

I have a very similar set up. 204 527 varmint with vortex 6-24×50. I used the warne medium rings and bolt clears scope just fine. Enjoy that rifle, mine shoots flys at 100yds.

Good to know, thank you!! Just ordered a set of the mediums. Hope mine is as accurate as yours!

[rjinaz85308]

I have a 40mm Leupold on mine using Burris 420140 CZ Medium Rings