fiftybmg
Well-Known Member
I'm looking at adjustable rails to add 250 MOA.
So far, from what I see, the 200 MOA Valdata RAM looks like a good choice. Not the best choice, but good because of price, I can get it locally, and the MOA settings are lockable, immovable and appear to be repeatable. Downside is it's 50 MOA short, but I know a very talented machinist to enhance it to 250.
I would appreciate feedback on any similar range extender rails used, what you put them on and how they track. So far google-fu has revealed stories a few years old of micrometer-type units that don't track well, but are fine for a one-distance setup.
I'd like confirmation that I'm on the right track with this type or rail, that it is suitable for reliable field adjustments.
I hatched a cunning idea to take a .375 RUM with a 300 grain .695 BC at 2900 fps to 2 miles. On paper, I need 230 MOA at my altitude, the rail is 20 and the scope has 100 total. At sea level the calculator says I need 281 MOA, hence the 250 rail.
So far, from what I see, the 200 MOA Valdata RAM looks like a good choice. Not the best choice, but good because of price, I can get it locally, and the MOA settings are lockable, immovable and appear to be repeatable. Downside is it's 50 MOA short, but I know a very talented machinist to enhance it to 250.
I would appreciate feedback on any similar range extender rails used, what you put them on and how they track. So far google-fu has revealed stories a few years old of micrometer-type units that don't track well, but are fine for a one-distance setup.
I'd like confirmation that I'm on the right track with this type or rail, that it is suitable for reliable field adjustments.
I hatched a cunning idea to take a .375 RUM with a 300 grain .695 BC at 2900 fps to 2 miles. On paper, I need 230 MOA at my altitude, the rail is 20 and the scope has 100 total. At sea level the calculator says I need 281 MOA, hence the 250 rail.