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Old February 8, 2013, 03:55 PM   #4
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Join Date: September 13, 2005
Posts: 3,888
Inappropiate ammunition is also a factor. As an example, many 9MM Parabellums do not fire lead bullets well due to the rate of twist and depth of lands and grooves in their barrels, however my Browning Hi-Power DOES. Back in the days when revolvers were standard in Bullseye shooting the Colt Officer's Model had a good reputation for accuracy because Colt use a barrel that optimized shooting with lead bullets, likewise the Python has a good reputation for using that same rate of twist and depth of lands and grooves. The 38 Super had a reputation for so-so accuracy until someone found that problem was due to setting the headspace on the mouth of the case instead of the rim. A number of commercial rifle rounds have fallen by the wayside due to a poor choice in the rate of twist or using bullets that were not right.
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