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I thought I'd share a 100 yard zeroing and load development target I adopted from one I found on Accurate Shooter.
The target audience is those of us with MRAD/mildot turrets and reticles shooting at empirical ranges (50, 100, 200+ yards). Most targets I've found are gridded out in inches and are great for MOA turret/reticle setups. But doing the math to figure out MOA to MRAD clicks is at best time consuming and often frustrating (91m @ 100yds, fudging 0.1mils as ~0.9cm per click at 100yrds, etc).
Likely, there are tons of zeroing and development targets out there (free or otherwise), but I am either too cheap or too lazy to (do the math). Hence this adoption.
Essentially, I scaled down the original to match up with mil-radian adjustments at 100 yds. The grid is now to scale at 0.91cm per square - this should match 0.1 mildot turret clicks and make zeroing much less painful.
A couple of other "enhancements" I added:
- 1 inch circle drawn around the impact point to ease calculation of precision and accuracy at a given range (all 10 rounds in the circle at 100 yds is sub-MOA, @200 yds, it would be sub 0.5 MOA)
- for us load developers, I added the standard entries to track load, conditions, etc.
Usage for zero is pretty straightforward (as described in the link below), but the quick overview: assuming the glass is zeroed enough to get on paper:
Usage for load dev is similar:
The advantage (as described in the original article) is that the point-of-aim does not get beaten up with hits and thus repeatable POA is achievable.
When printing out, make sure "scale to fit paper" is unchecked. Confirm that scale is correct by measuring 9.14cm c-t-c from POA to POI dots. Also confirm that the 1 MOA circle is 1" c-t-c of the thick line.
I'm open to suggestions for improvement.
The original (linked and credited below) is meant for use at 100m with mildots or 100yds with MOA turrets.
Original target and credit: http://www.simplyright.ch/accurateshooter/
The target audience is those of us with MRAD/mildot turrets and reticles shooting at empirical ranges (50, 100, 200+ yards). Most targets I've found are gridded out in inches and are great for MOA turret/reticle setups. But doing the math to figure out MOA to MRAD clicks is at best time consuming and often frustrating (91m @ 100yds, fudging 0.1mils as ~0.9cm per click at 100yrds, etc).
Likely, there are tons of zeroing and development targets out there (free or otherwise), but I am either too cheap or too lazy to (do the math). Hence this adoption.
Essentially, I scaled down the original to match up with mil-radian adjustments at 100 yds. The grid is now to scale at 0.91cm per square - this should match 0.1 mildot turret clicks and make zeroing much less painful.
A couple of other "enhancements" I added:
- 1 inch circle drawn around the impact point to ease calculation of precision and accuracy at a given range (all 10 rounds in the circle at 100 yds is sub-MOA, @200 yds, it would be sub 0.5 MOA)
- for us load developers, I added the standard entries to track load, conditions, etc.
Usage for zero is pretty straightforward (as described in the link below), but the quick overview: assuming the glass is zeroed enough to get on paper:
- dial or hold 1 mil left
- aim at the big diamond on the right
- send
- adjust for impact
- send and confirm zero
Usage for load dev is similar:
- record load data and conditions
- dial or hold 1 mil left
- print load rounds
- repeat with new targets until OCW or ladder rounds are spent
- spend lots of time agonizing whether that super tight group is luck or a really good load
The advantage (as described in the original article) is that the point-of-aim does not get beaten up with hits and thus repeatable POA is achievable.
When printing out, make sure "scale to fit paper" is unchecked. Confirm that scale is correct by measuring 9.14cm c-t-c from POA to POI dots. Also confirm that the 1 MOA circle is 1" c-t-c of the thick line.
I'm open to suggestions for improvement.
The original (linked and credited below) is meant for use at 100m with mildots or 100yds with MOA turrets.
Original target and credit: http://www.simplyright.ch/accurateshooter/
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