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mk 1 or mk2 JSB heavys .25 cal

I think it's going to be something that every gun is a little different. I know in the FX Impact Ted Bier is able to shoot the MKII's the best, but in my Impact the MKI's shoot the best. I think you will find every gun is a little different and that you need to pick up a tin of both and give it a try. Who knows, maybe they'll both shoot great for your friend?
 
"Droptine26"What is difference between the 2?
I've noticed a difference in skirt thickness. The MK1s are thinner than the MK2s. I think they've done this by changing the cavity profile to move the material around. That will result in a slight change in center of gravity. My RAW seems to like the MK1s more, but it's very marginal.