20 moa rail quistion
- Thread starter Alleycat
- Start date
Yes you will. I have had 20 MOA rails on .223, .308, 300 WM, and .338 with a multitude of varying optics and never had an issue with a 100 yard zero. You will be happier with the 20 MOA later if you decide to start reaching out further.
What benefits would a 20moa base offer for mid-long range shooting? I'm pretty sure that is what I put on my rifle but I don't have a clue how to find out. Maybe measuring how thick it is with a set of calipers?
(Pardon my ignorance.I was taught to shoot the army way; We didn't learn MOA math or MRAD math at all (for shooting), the finer points of ballistics and so on. All we were taught was how many clicks was what, at what range using the C79 sight.)
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For argument sake, lets say that your average rifle with a flat scope base and equal height rings will mount your centered scope so that you are zeroed (within a couple clicks) at 100 yards. If you have +/- 40 MOA of adjustment (+/- 160 clicks, usually), then you have about 40 inches of rise or drop worth of adjustment, at 100 yards, to play with for use with high or low powered rounds, or for stretching out downrange. You're not likely to use much of the up, but it's possible to run out of down, requiring you to hold over.
Throw on a 20 MOA base and now you're pointing 20 inches low at 100 yards. So you crank your scope up 80 clicks to get your zero, and now you have 60 MOA (240 clicks) of down adjustment available for those long range shots before you have to hold over. That's another 8 feet of drop at 500 yards that you don't have to guess your hold on. Over 16 feet at 1000 yards! And still no problems up close.
Throw on a 20 MOA base and now you're pointing 20 inches low at 100 yards. So you crank your scope up 80 clicks to get your zero, and now you have 60 MOA (240 clicks) of down adjustment available for those long range shots before you have to hold over. That's another 8 feet of drop at 500 yards that you don't have to guess your hold on. Over 16 feet at 1000 yards! And still no problems up close.
