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Well, if I read this correct, Gold, would only need roughly 400 FPS, as Gold is twice the density of lead - to get roughly 11.5 ft/lb or 16 Joules.
Silver is only roughly 10% ligther than lead...so 720 FPS is about right...
So, in terms of accuracy - I just wonder
HOWEVER, I think FAC power levels would be the most revealing in terms of "punch" and accuracy. The idea of A10 Warthog 30mm depleted uranium bullets come to mind
on the gatling gun..Just wondering - what kind of findings for 0.22 / 0.25 / 0.30 / .35 etc.. at 50 100 & 200 yards at 50 / 150 /200 Joules power levels
and final experiment - a cocktail of metals ...to make the worlds best & most accurate pellet at varying weights > To match a variety of velcoties, from constant 700FPS to 770FPS ???? No doubt a tin of 200 would cost £200
or £10 to USD$15 per pellet. If the trade off is not more than 15% , then no point in getting JSB to melt that CSFB Au .999 Fine Gold 37.5gr block of gold...