Quote:
Originally Posted by Hunt4Ever
 I’ve tried some Vihtavuori N530 pushing VMax 40gr, never could get the advertised max at 4055fps without a sticky bolt, has anyone?
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The advertised max is 25.8 grains of N530 which would likely not give much more than 3711. The start load of 23.1 grains gives 3323f/s or 143.85 f/s/grain and that times 25.8 grains = 3711. This load would be very near max pressure for the 204R and going past 25.8 grains to sticky bolt would have you up in the 70,000 PSI range. There is obviously a misprint in the VV manual and doing the math, as I did, points it out without risking life and limb.
I have a friend who has shot about 60 coyotes at 180-300 yards with the 32 Z-Max. Shot through the lungs they have all been bang flops and much the same with quarting to and quartering away shots. Surprisingly they have all penciled right through leaving small holes that his trapper friend is very happy with. I believe that he has tried a few 30 Blitz Kings with the same result. Perhaps this performance is due to the fact that he is only pushing them to about 3850 fps in an 11" twist barrel.
If I were able to hunt coyotes I would run my 9" twist barrel and the 55 Bergers at around 3200 fps. Good result have been reported by others running this combination.