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Help please? I am building a 338 LM and intend on mounting a Vortex Viper PST 6-24x50 FFP on it. I understand the scope has a max of 65 MOA in adjustment; for this range of rifle what rail and rings would you suggest? Thanks
Thats about 19 mils of adjustment, assuming your optics were mechanicaly centered when zeroed (which they rarely are) 65 MOA and a 0 cant base would roughly get you to around 1500-1550 depending on load of course. A 20 MOA base would get you to around 1800-1850, so a 40MOA would be what you want to get to 2K and have some windage adjustment. I am using basic load data based off a 300 SMK at 2760 fps.
What base and rings did you use. On my 308 I bought NightForce base and rings and the rings had to be lapped a great deal to line up. I was a little disappointed in their rings. Thanks for your help. By the way; how far have you shot with your rifle?
How far are you planning to shoot the rifle? If going for maximum distance, a 40 MOA or so base as has been suggested above is what you need.
Keep in mind, however, you won't be able to get a 100 yd zero with that scope. So if you want to be able to zero at closer ranges and you're not going to be shooting it quite that far, I'd suggest a 20 MOA for that scope for all around use.