358WCF, et. al.
I just loaded a few 338-06 with RL-15.5
Another 6 of the 225 Hor. SP over 56/RL-15.5, at 3.375" OAL (.055 off the lands). This previously met my velocity goal of ~2600' in the Springfield's 19" carbine barrel.
Loaded 3 of the 210 NPT over 56/RL-15.5, and 3 over 57/RL-15.5, all at 3.305" OAL (.025 off the lands).
In all of these the case fill looked just about 100% - right to the base of the seated bullet with no compression needed.
Will report on the accuracy and velocity of the 210 NPT load when I get to fire them.
Anxious to try this powder in my 24" Mauser 338-06.
Cheers,
Rex
Last edited by TRexF16; 09/01/22.
