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Old 01-29-2010, 21:49   #7
Doc Pathfinder
Senior Member
Join Date: Aug 2008
Location: Western South Carolina
Posts: 166
The 400 CorBon is at it's best with 135 to 155 grain bullets. The 10mm works great with 180 grainers. That's where the 10mm would have an advantage over the 400 CorBon but I do love shooting those little 135's in my converted G-21sf.
Cowboy Glock Shooter
Certified Glock Armorer
Carolina Glockers 1881
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