Gwion wrote:I go at 25m. It's dead on at 25, about 1" high at 50m and dead on again at around 75m for most standard velocity rounds, or there abouts. Works quite well in the field.
Just ran this through an online ballistics using Rem 'Golden Bullet' as a base: BC of .125, Vel of 1280, 40gn bullet:
My statement of drops was out but the fact that it works in the field bears out, giving a 1" impact zone between 15-55m and a 3" impact zone between 15-75m. Anything beyond 75m out to 120, i tend to use the 223rem with TrailBoss load, beyond that they get to live or i get closer; this is for culling light bodied pest species with brain shots to 50 and vital shots out to 75. I don't take photos of culls but on foot (solo) i usually get between 6-12 and on the back of the ute between 25-50 odd under light.
25m Zero15m 0.4" low
25m ZERO
55m 0.59" low
75m 2.37" low
Here are other drops for the record:
50m Zero15m 0.34" low
25m 0.11" high
50m ZERO
75m 2.35" low
75m Zero15m 0.13" high
25m 0.9" high
50m 1.38" high
75m ZERO
85m 1" low
95m 2.62" low