
Posted by Bob on 9/15/2007, 6:16 pm, in reply to "strange experience" --Previous Message--
130.76.64.15
Stick to black power. your gus are made for it... and it will work best.
: Hello. Has anyone used the American Pioneer
: BP substitute? I'm finding that load
: velocities are all over the place! I mean
: one shot at 723 fps, and two shots later in
: the same cylinder and BOOM 1291 fps! I
: suspected something strange because recoil
: from shot to shot was very different, so I
: set up my Shooting Chrony, which I know is
: very accurate and consistent. I'm shooting
: a Ruger Old Army, CCI #11 caps, lube
: impregnated felt wads, Speer .457 round
: balls, and a flask with volume screw-on
: spout that I cut to throw a charge that
: pretty much fills up the chamber. I ram each
: ball to the same depth (ram stops on the
: frame, and I get a perfect little circle of
: lead from each ball being rammed home. I
: thought maybe something was off with the
: charge volumes, but when I got back to the
: house, I used the flask to throw six charges
: separately onto my grain scale and they
: measured 35.5 to 37.5 grains each, so about
: 5% variation over six loads. There is a
: very noticeable recoil difference from shot
: to shot that I knew I wasn't imagining. Any
: ideas? What the heck?
:
: Thanks,
: James
:
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