JeffB1961
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- Mar 16, 2022
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watching the video above , all shots with 100 grains by volume of 777 ffg ... and was amazed at the velocity differences !
most had close to or over 100fps difference in 3 shot groups .
the 250 grain conivore didn't break 1100 fps even though the 300 grain diid almost 1700 fps or better and the 330 grain PB ELR broke 1600 and 1700 fps .
really didn't expect 250 grain bullets to shoot 500 to 600 fps slower than the 300 and 330 grain bullets using the same powder charge from the same gun .
what are the possible reasons for these differences ?