brentc
Well-Known Member
- Joined
- Apr 3, 2009
- Messages
- 2,644
I assume he means this. I believe the hashmarks on the TMR reticle are 1/2 MIL. If so this equates to about 1.7 MOA approximately. On an SFP reticle the subtentions (measurements) of the distance between the hashmarks change as the magnification is changed so there is only one power setting where they will be correct, which is usually at the highest power setting. So if a guy was to drop the power a bit he could get the hashmarks to grow in size in relation to the target and you could come up with a 2 MOA subtention per hash which in a way makes it an MOA reticle.
The thing I don't like about all SFP scopes when using the reticle for aiming is that you better be sure you have the power ring set to the exact same spot each time or else your reticle subtentions will be different every time and so will your POI. That is one of the reasons that many manufacturers use the highest setting or have a detent for the proper setting so it is more repeatable.
Scot E.
That's exactly what I mean. The .5 mil markings will be your 2 MOA mark, and the 1 mil mark will be 4 MOA.
It's not hard to do. You can figure it out mathematically, but the easiest way to do it is to get an MOA grid target, set it out at exactly 25 yards and adjust the power down from max until the reticle matches the grid lines. You can check it again at 100 if you can see your grid clear enough. Then make a mark on the power ring with a silver fine tip sharpie. I've done it. It works.
For a Leupold 14 power (14.3 per Leupold spec), the TMR reticle subtends to MOA right at 13 power mathematically. And the 20 power (actually 19.6 according to spec) subtends MOA at 18 power.