View Single Post
  #7  
Old 01-07-2007, 11:10 PM
NZVarminter NZVarminter is offline
Senior Member
 
Join Date: Sep 2006
Location: New Zealand
Posts: 189
Default

After reading the bullberry test on barrel lenght for the 204, and Fred concluding that you only loose 50 fps going from 24 to 21". I chopped my Cooper 204 down to 21"

Sierra 39's were doing 3950-4000fps with 28.3g of H4985 Extreme (AR2206h) out of the factory 24" bbl.

Same load is now only doing 3650-3700!, so I have lost more like 200fps!@#$

Cheers

Grant
Reply With Quote