Pellet sizes

Watching videos on different pellet size within tins of pellets, I decided to purchase a pelletgage. I bought several tins of pellets for .30 FX Wildcat and thought I would try it out. Here are the results. I would like your opinion on why the JSB Diablos are so much larger that the 7.62 listed on tin.

JSB Hades .30 44.75 gr

1st tin - 7 at 7.61mm 2nd tin - 12 at 7.61mm

91 at 7.62mm 78 at 7.62mm

52 at 7.63mm 59 at 7.63mm

JSB Diablo .30 44.75 gr

35 at 7.65 mm

119 at 7.70 mm

JSB Diablo .30 50.15 gr

36 at 7.65mm

114 at 7.70mm

If pellet sizing is supposed to make such a difference, how can we tune our rifles when the pellet size is so much greater than advertised? Does this really have any effect on accuracy?


 
a little large wont affect much, it will self swage in the barrel lol .. this is only with pellets, a tight slug is going to lead the barrel and fk everything up real nice for ya lol .. but a loose one that will basically kick freely down the barrel when you close the bolt isnt going to fly straight period .. you kinda need to slug the barrel to see where your at with it, imo you shouldnt have problems pushing pellets through with a rod by hand with some slight resistance, but if theyre falling halfway down the barrel by themselves thats a problem .. and if you got to beat them through with a hammer lol .. thats an issue to ..
 
a little large wont affect much, it will self swage in the barrel lol .. this is only with pellets, a tight slug is going to lead the barrel and fk everything up real nice for ya lol .. but a loose one that will basically kick freely down the barrel when you close the bolt isnt going to fly straight period .. you kinda need to slug the barrel to see where your at with it, imo you shouldnt have problems pushing pellets through with a rod by hand with some slight resistance, but if theyre falling halfway down the barrel by themselves thats a problem .. and if you got to beat them through with a hammer lol .. thats an issue to ..

"Self swaged" would seemingly result in higher friction and lower velocity. That might affect much.