Originally Posted by Sammo
I have (along with a colleague) carried out tests at 55 yards and got the following results.
The 8.2 gr pellets went 22 mm higher than the 8.6 gr pellets with the 8.3 - 8.4 - 8.5 gr weights proportionately between.
Different guns and barrels may give different results, however
The manufacturer states that their pellets give the following results
12mm for a 5 shot group at 50 yards
Does the trajectory alter that much at 50 to 55 yards that the pellet height variation would go from 12 to 22 mm
+ or - 2.5% is 8.19 gr to 8.61 gr so the tests carried out above are within the weight variation
It was from the same batch?
I didn't done that test because I don't have a indoor place and we have to much wind to do a precise test but at the muzzle I got the same speed from weight pellets with 0.543 g (8.38 gr) and 0.550 g (8,49 gr)
next I done the same test with a different batch and the same weight and got more 2.5 m/s (8.2 f/s)