Unverified load 10258 in caliber .500-416 Rigby

LoadID 10258
Bullet LBT CLGC- LFN
Bullet Weight 465 grs
Powder Accurate XMP 5744
Powder Weight 45 grs
Primer WLR
Brass Make Norma (416 Rigby)
Barrel Length 24 (inches)
C.O.L 3.45 (inches)
Velocity 1500 fps
Group 100 yds 1 1/4" @ 75Y (inches)
Submitted By TR
Gun Info BRNO Mauser
Comment Played around with this cartridge back in the 90's but didn't fully develope it.