You don't have to use the small triangle, it's just that it works for 308 class cartridges with a 200yd zero. If you run 308 with a 100yd zero and big triangle you will just find the top of the post might only be 350 yds.
You don't have to use the small triangle, it's just that it works for 308 class cartridges with a 200yd zero. If you run 308 with a 100yd zero and big triangle you will just find the top of the post might only be 350 yds.
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