NOTE - this only includes JSB and H&N in the limited sizes i buy.
so far , every tin i have received , when sorted by head size . come out with generally 2 head sizes as per pellet gage. since that is down to 1 / 100 th mm . every JSB and H&N tin has been like that , along with predator polys.
weight , however , can be another matter. i find with JSB , a tin which currently is both 25 and 30 cal. will have a spread of 1.3 g in total weight. this is consistent whether it is 25 cal 25g , 34g , 34g MK2 or 30 cal 44g or 50g all tins have this spread.
as for H&N i only have the 25 cal 30g pellets. i did find they have an apparently tighter tolorence as the spread was only 3/10 of a grain for over 95% of the tin. this tells me H&N are more consistent out of the tin.
granted , me being OCD any JSB tin will be sub divided into 6 groups based on head size and weight groupings. and with a simple fine tune will shoot real tight groups every time. yes , it is boring to sort , but you pay good money for them , you may as well get the most out of them. and if your gun loves H&N , an extra benefit.
so far , every tin i have received , when sorted by head size . come out with generally 2 head sizes as per pellet gage. since that is down to 1 / 100 th mm . every JSB and H&N tin has been like that , along with predator polys.
weight , however , can be another matter. i find with JSB , a tin which currently is both 25 and 30 cal. will have a spread of 1.3 g in total weight. this is consistent whether it is 25 cal 25g , 34g , 34g MK2 or 30 cal 44g or 50g all tins have this spread.
as for H&N i only have the 25 cal 30g pellets. i did find they have an apparently tighter tolorence as the spread was only 3/10 of a grain for over 95% of the tin. this tells me H&N are more consistent out of the tin.
granted , me being OCD any JSB tin will be sub divided into 6 groups based on head size and weight groupings. and with a simple fine tune will shoot real tight groups every time. yes , it is boring to sort , but you pay good money for them , you may as well get the most out of them. and if your gun loves H&N , an extra benefit.