Unverified load 4378 in caliber .22-250 Remington

LoadID 4378
Bullet Sierra blitzking
Bullet Weight 50 grs
Powder H-380
Powder Weight 42.0 grs
Primer CCI-400
Brass Make Win
Barrel Length 24 (inches)
C.O.L (inches)
Velocity 4218 fps
Group 100 yds .195 (inches)
Submitted By GC
Gun Info Cooper mod. 22
Comment Hot load, no psi signs in my rifle