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Old 02-16-2013, 22:40   #7
Tiro Fijo
Senior Member
Join Date: May 2011
Posts: 6,281
Since a .40 S&W is a hotter ctg. some recommend changing the locking block pin every 10K rds. However, this is more important if you are using hotter 135, 155 & 165 gr. ammo than with the 180 gr. which is creampuff in comparison.
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