by Chronos » 18 May 2014, 1:13 pm
just had a thought guys, how about a target, either A4 or A3, landscape with a series of say 4-6 vertical columns of 1" grid squares with aim points in the center
the point of such a target would be that you could take your target to the farm and set it up then walk back with your rifle and shoot one or three shots the on the first column at say 20m for a rimfire, then 40m, 60m, 80m and 100m for the next 4 columns ( could be 50m, 100m, 150m, 200m and 250m for a centerfire)
this would allow you to sit down and plot your point of impact for the usable hunting ranges for your gun and see what it's really doing. is it zero'd correctly for the ballistics of your cartridge? does the point of impact drift left or right as you get further out?
if you find the point of impact on your .22 hits 1" above your point of aim at 20m, 2" high at 40m and is bang on at 60m you might consider making an adjustment to bring it down so it shoots just half an inch an inch low at 20m, an inch high at 40m and an inch low at 60m (just pulled some numbers from thin air, not actual figures)
i'd like to test this on my .22 but also my new .308 where i plan on leaving the scope set for a good point blank range for hunting, while ballistic software is good, i'd still like to see holes in paper
Chronos