LRT's, & MK4.............
Rex F,others.......
the MK4M3, has 72 moa total, the MK4 M1's 10x, have 90 moa total, MK4 M1-16X, has 140 moa total. as does the 20x.
The LRT's also have 90 moa total, All have 30mm tubes.
The MK4M3, IS a BDC scope with the proper dial, and will act accordingly with the RIGHT load.
Problem is, as Rex said, you gotta know the right load.
The dials are all wrong on the M3 series scopes.
For the loads they SAY they will work with.
One exception, the M118 dial ( which is no longer available).
Also, keep in mind, as you use windage, you lose ELEVATION adjustment.
ONE more reason to go tapered (insurance policy).
The point I was trying to make, is BUY the tapered base........you can't lose on this choice.....if you buy the standard.....as others, and myself have stated, you MAY get to do it twice.........and at $130.00 a shot, that's expensive.