Originally Posted by DMP25-06
What type , and volume of powder , type of primer , and barrel length was used to achieve that velocity ?
Is the .22BR case volume similar to the volume of the .220 Swift ?
Thank You .
No clue on the details, but here is an article by one of them:
Fast-Twist T2K in 22BR within AccurateShooter.com
22BR Cartridge Guide within AccurateShooter.com