Help With CRPS Setup, Canted Rail or Not?

midgetwaiter

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I’m getting a new rifle setup for CRPS open div. I bought a Ruger Precision Rimfire and have mounted a Burris Fullfield 2 6.5-20 with their Ballistic MilDot reticle in Nikon P Series rings. I left the factory 30MOA rail in place. I went to zero the rifle last night and had a heck of a time getting it on paper, looks like I didn’t think through the implications of that rail well enough but maybe I have something wrong.

The scope has a 30MOA adjustment range so assuming that the zero would be close to the middle of that range I have 15MOA downward adjustment. With that maxed out, using my top mildot as an aim point which is about 10MOA I’m still hitting 4” higher than POA at 100 yards. So that’s a total of 29ish MOA and the rail is 30 so it SEEMS like everything is probably together correctly and what I’m seeing is because of the rail but this is my first setup with a rail like that so I wonder if I’m missing something.

Now if all that is correct it leaves me a decision to make, aiming with a mildot on the vertical is not working great and any shot less than 100 yards is absurd. Do I go to a level rail or change to a scope that has more internal adjustment? The options in the price range I have in mind all seem to max at 60MOA ish so I may find I can’t get a 100 yard bang on zero but I think I’d get close. On the flip side the reticle of the scope I have will give me enough room that I can shoot out to 200m or so without dialing if I switch the rail but idk if that’s enough for a CRPS match.

Thoughts?
 
If the budget allows, get a scope with more travel. With the distances reaching out to 400m for some events, you are going to need alot more travel then you have.

I have several great options for Open class ... a few will not break the bank.

Send me a PM or email.

Jerry
 
With CCI standard velocity it's about 49 MOA (14.2 mils) up for 300 meters with a 100 meter zero. You have 30 MOA total on that Fullfield, up and down plus you're probably losing some up zeroing the scope 100m. so you may have 10 up and have to hold the remaining 40. For reference I'm running a Diamondback Tactical with 85 MOA total adjustment, on a EGW 20 MOA rail, and am still holding at 300.
 
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Thanks guys that was just the kind of info I was hoping for. I’ve got a Vortex PST on another rifle I will swap over until I can figure out what I want to do long term.

Porterhouse, how do you find the Diamondback? I was considering that recently.
 
I’m getting the impression your having issues at the closer ranges with this set up and not the further out shots?
What about going down to a 15 or 20 moa rail?
 
I’m getting the impression your having issues at the closer ranges with this set up and not the further out shots?
What about going down to a 15 or 20 moa rail?

New rifle so I haven’t had a chance to take it out for longer shots. You’re right, that would probably help with the closer shots but if I’m going to need a 50MOA that’s just creating a different problem. I put my viper pst on it for now, it should have enough adjustment, going to try it out tomorrow.
 
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