Willo1962
Member Extraordinaire
I have just bought 5 tins of AADF rather than 10 tins of a cheaper pellet as my R10 and HW90k both like them BUT this latest batch seem to have a much larger spread of weight. They are supposed to be 16gn but the majority are under.
I used a jewellers scale that measures to the hundredth of a grain and I tared and calibrated every few minutes.
I measured around 750 pellets and the weights ranged from 15.42gn to 16.22. I got 1 pellet at 15.16 and one at 16.41 but I discounted them.
The reason for this little test was my HW90k had lost a little power when I was messing around with the trigger. I dont know what I could have done or whether it was because the last time I did a long chrono string it was a lot hotter and it was about 25 Celsius and it was 12 Celsius on Sunday at my club (outdoors) ?
I went home and pumped some air in and after ten minutes of tippety tap I got to what I thought was 11.8flb or 577fps ( average over 10 pellets) with 16gn pellets. I then thought I should weigh some pellets and check. I was getting from 11.33 to 11.98flb.
I was going to set the power at about 11.4 - 11.5flb but with these pellets I could easily go over 12.
I have weighed BSA Goldstar and Crosman Ultra Magnum and they only vary by about .4gn but most are the weight they say on the tin.
Out of 750 pellets I would say 40% where 15.42 to 15.72, 40% where 15.73 to 15.90 and 20% 15.91 to 16.22 so over 80% under weight.
I will probably set the power to the low 11's
Am I being too pedantic and worrying about nothing. I want to stay within the law but I also want to be shooting outdoors up to 50m and would like a full power ? rifle.
I think I am more concerned about the majority of the pellets being lighter than advertised. Why not mark them up as 15.7, why the magical 16.
I used a jewellers scale that measures to the hundredth of a grain and I tared and calibrated every few minutes.
I measured around 750 pellets and the weights ranged from 15.42gn to 16.22. I got 1 pellet at 15.16 and one at 16.41 but I discounted them.
The reason for this little test was my HW90k had lost a little power when I was messing around with the trigger. I dont know what I could have done or whether it was because the last time I did a long chrono string it was a lot hotter and it was about 25 Celsius and it was 12 Celsius on Sunday at my club (outdoors) ?
I went home and pumped some air in and after ten minutes of tippety tap I got to what I thought was 11.8flb or 577fps ( average over 10 pellets) with 16gn pellets. I then thought I should weigh some pellets and check. I was getting from 11.33 to 11.98flb.
I was going to set the power at about 11.4 - 11.5flb but with these pellets I could easily go over 12.
I have weighed BSA Goldstar and Crosman Ultra Magnum and they only vary by about .4gn but most are the weight they say on the tin.
Out of 750 pellets I would say 40% where 15.42 to 15.72, 40% where 15.73 to 15.90 and 20% 15.91 to 16.22 so over 80% under weight.
I will probably set the power to the low 11's
Am I being too pedantic and worrying about nothing. I want to stay within the law but I also want to be shooting outdoors up to 50m and would like a full power ? rifle.
I think I am more concerned about the majority of the pellets being lighter than advertised. Why not mark them up as 15.7, why the magical 16.
