I had a little dinky short barreled SS Ruger Mk 2 that I used as a coyote truck gun in .204. I picked a random book load of H-4895 (28 gr.) 32g V Max and Rem 71/2 primers and it got an honest to god 4050 fps over the chrony out of that short factory barrel and shot under 1/2 inch, hot,cold clean, dirty you name it. I was impressed at the way it killed dogs also, not the horsepower of my Swift but just as flat and accurate.-Muddy