Pistol trajectory .177

[derekm]

Having to sight in a pistol from scratch and the old Chairgun with its detailed trajectories seems not to exist anymore.
When I can get to hitting a target at 6 yds, what will the approx difference in point of impact be at 10m please?

[trajectory]

I think you will need to quote the velocity before a calculated value for the drop can be given. Might just be worth popping a target up at 10m once you are hitting the 6yard one & measure the difference. it takes any other variables out of the calculation.

[derekm]

Thanks for getting back. I only wanted a very rough figure, as I'm not allowed to shoot in the garden (other half hates guns). Messing around at the range trying to even hit the 6 yard with un adjusted sights, waiting for the others to finish their cards is a bind, then repeating the process for 10m is more so!

[Dave Lee]

Are you using 6yd targets at 6yds? Assuming so, the elevation change should be pretty minimal if your pistol is running at a good velocity (and you're using a light pellet, say 7 grains) as the aiming marks are scaled between the two types of targets.

I don't adjust signts between 6yd (in the garage) and 10m (at the range) as I use the correct targets for each distance. [Also, when I'm shooting 6yd, my focus is on group size, not score, so I haven't noticed much of a change in POI at 6yd.]

If you're using 10m targets at 6yd range, that's a different story and you may want to consider grabbing some 6yd targets. If you don't want to buy dedicated 6yd targets, why not draw some scaled down aiming marks (google the diameter at 6yd) on the reverse of a 10m card, for rough sighting in at that closer range.

Hopefully this is some help and good luck!

[trajectory]

Cold, dull & damp here but just fired a few shots at a 6 yard & 10m at a 20mm diameter aiming mark with a .177 pistol, all a bit rushed as the light was starting to go & as I say a bit chilly to hang around.

Sights set so shooting to point of aim at 6 yards then without changing the sights the impact was 1/2" above the point of aim.

As an aside pop your 6 yard target on a big piece of paper, old wrapping paper, off cut of wallpaper or some A4 printer paper taped to form a bigger sheet & then you can track the impact & dial in the adjustment to your sights.


All the best

[rapidboy1]

We have been playing with 6 yard targets at the range just recently
H&N Excite Econ II, 7.4 grain, running at around 500fps, i hold just below the black, maybe a click or two required at most to fine tune but it was holding the black at both distances.