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Vortec MAX · 06-06-2015, 06:54 PM

I worked up some 45 Colt Governor loads using WIN 231 powder and took them to the range today. I had four that used the Berry's 250 GR FP and one that used Hornady 250 GR XTPs.

Loads used new Starline cases, primers as noted, an OAL of 1.595" and were crimped with a LEE FCD (firm contact + 5/8 turn on Berry's and firm contact + 1/2 turn on XTPs).

Here are the results: ( I will also add this data to my original post up top)

Hand Loads Using Berry's 250 GR FPs:

WIN 231 7.3 Grains - CCI 300 Primer - 637 FPS - 226 ft-lbs - 53 FPS Spread - Std Dev of 16.7

WIN 231 7.3 Grains - CCI 350 Primer - 663 FPS - 245 ft-lbs - 38 FPS Spread - Std Dev of 11.3

WIN 231 7.5 Grains - CCI 300 Primer - 668 FPS - 249 ft-lbs - 36 FPS Spread - Std Dev of 10.6

WIN 231 7.5 Grains - CCI 350 Primer - 687 FPS - 263 ft-lbs - 33 FPS Spread - Std Dev of 11.0

Hand Load Using Hornady 250 GR XTPs:

WIN 231 8.0 Grains - CCI 300 Primer - 775 FPS - 335 ft-lbs - 23 FPS Spread - Std Dev of 7.4 <-- very consistent load!

I backed off my crimp on the plated bullets but was still seeing evidence of the plating peeling off. I might back off some more on future loads to see if I can prevent that.

Mike