pressure effects of shot type
when I reload, I follow published loads very carefully, but there is one thing that doesn't make sense to me. (well, one thing about reloading that is)
You can look at two loads with the same hull, powder charge, wad and load weight but see difference in the pressure because one listing is lead and one is non-tox - lets say - Nice Shot. Researching Nice Shot it says you can use any lead load recipe but according to what I see on reloading boards the pressure seems to increase by about 500 PSI, not a barrel buster but still an increase.
now - to me -an ounce and a quarter payload is and ounce and quarter so I have a little trouble understanding the reason. Is it just a variation in the testing process of the different load? Or is it just that they know the 1 1/4 load of different materials as thrown by reloader bushings is volume based is not a true weight?
remember the old question- which is heavier - a pound of feathers or a pound of lead?? That is what this sounds like.
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