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Old October 4, 2011, 10:33 PM   #31
FrankenMauser
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Join Date: August 25, 2008
Location: 1B ID
Posts: 6,815
From Handloader issue 274 (October 2011), "Magnum Revolver Loads with Alliant Power Pro 300-MP", pages 20-23, we have a little bit of data.

.327 Federal loads were tested in a 7.5" Sparrowhawk.
No OAL is stated.
Code:
Bullet                   Charge (grains) - Velocity (fps) - Primer   -    Case      -   Velocity Spread (fps)
90 gr Sierra JHC                 13.0         1,451          CCI 550      Federal              47
         "                       14.0         1,498            "             "                  37
         "                       15.0         1,554            "             "                  77
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - -
100 gr Speer JHP                 12.5         1,331            "             "                  30
         "                       13.5         1,400            "             "                  37
         "                       14.5         1,460            "             "                  32
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - -
115 gr Speer Gold Dot            12.5         1,301            "             "                  55
         "                       13.5         1,402            "             "                  50
         "                       14.0         1,436            "             "                  48
At first glance that data is a bit disappointing (to me - compared to my 5.5" Blackhawk). But, a statement within the article shows that this particular Sparrowhawk is producing slow velocities with factory ammo, anyway: "Incidentally, PP 300-MP is the only powder I have tried that made it possible to duplicate and exceed .327 Federal Magnum factory loads..."

I take that to mean that the 115 gr Gold Dot load is exceeding factory velocities in this Sparrowhawk (though still short of my Blackhawk's 1,480 fps - oddly).

So... if one of us has a wild hair looking for an anal orifice to enter... PP 300-MP may be worth a shot.
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