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41magFan · March 21, 2001, 07:54 AM

I shoot competition with a STI chambered for 10mm and a Delta Elite. The mixture that I am finally happy with after several years of mixing and matching is:
CCI 300 SLP, 4.6 gr of W231, 220 gr L-RN (Precision Bullets), Winchester Brass, COAL 1.40", DIA. .421;
This bullet will travel between 852-863 fps. I would look at buying a new barrel for your glock ($185.00) to keep your brass from expanding too much. This will increase the life spand of your brass.

March 21, 2001, 07:54 AM	#5
41magFan Member Join Date: March 6, 2001 Location: Colorado Springs Posts: 27	I shoot competition with a STI chambered for 10mm and a Delta Elite. The mixture that I am finally happy with after several years of mixing and matching is: CCI 300 SLP, 4.6 gr of W231, 220 gr L-RN (Precision Bullets), Winchester Brass, COAL 1.40", DIA. .421; This bullet will travel between 852-863 fps. I would look at buying a new barrel for your glock ($185.00) to keep your brass from expanding too much. This will increase the life spand of your brass. __________________ Everyday above ground is a good day