Tex_OEF
Newbie
I have a question regarding the position of an MRDS as a secondary sighting option. My introduction to dots was with the RMR on top of the 3.5x ACOG when we were first issued M27 IAR's around ten years ago. I have standalone red dots on carbines and pistols now, but I recently mounted an RMR on top of the ACOG on my primary carbine.
Height over bore with the RMR on top of a TA31 is approximately 4.25in. Sighted in at 50yd, putting the dot at the clavicle area at 7yd places the round in the heart area. I haven't shot on paper with it at 100yd yet to measure the offset, but it holds on a 6in steel plate at that range without any hold adjustment. That's further than I would plan on actually shooting with the RMR, since the ACOG is right there.
I would think that the top mounted position would have an acceptable offset at close range, while being in a position that is usable when firing from either shoulder. There's no cheekweld of course, but my chin does contact the stock.
Most people I see these days seem to have their MRDS mounted at a 45 degree angle rather than on top of their primary optic. I have not had an opportunity to experiment with this myself. Can anyone clue me in on the advantages of this position (or another position) as opposed to the top mounted position?
Height over bore with the RMR on top of a TA31 is approximately 4.25in. Sighted in at 50yd, putting the dot at the clavicle area at 7yd places the round in the heart area. I haven't shot on paper with it at 100yd yet to measure the offset, but it holds on a 6in steel plate at that range without any hold adjustment. That's further than I would plan on actually shooting with the RMR, since the ACOG is right there.
I would think that the top mounted position would have an acceptable offset at close range, while being in a position that is usable when firing from either shoulder. There's no cheekweld of course, but my chin does contact the stock.
Most people I see these days seem to have their MRDS mounted at a 45 degree angle rather than on top of their primary optic. I have not had an opportunity to experiment with this myself. Can anyone clue me in on the advantages of this position (or another position) as opposed to the top mounted position?