I thought you guys might like to see the Chrony data with WC820 (n) in 357 mag Rossi M92 20" rifle and Ruger SBH 7 1/2" 44 mag pistol. All the rounds were loaded using the listed cavities in a Lee Auto Disk measure. Primers were CCI Small Pistol and Large Pistol. Cases were all R-P.
357 mag 158 gr cast SWC plain base @ .358" w/LLA lube:
.82cc/11.8 grs = 1567 fps
.88cc/12.8 grs = 1623 fps (good accuracy + no leading, so I stopped here)
44 mag 240 gr cast SWC plain base @ .430" w/LLA & NRA 50/50 lube:
.95cc/13.7 grs = 810 fps
1.02cc/14.7 grs = 961 fps
1.09cc/15.7 grs = 1095 fps
1.18cc/17.3 grs = 1163 fps (best accuracy)
1.26cc/18.4 grs = 1226 fps
1.36cc/19.7 grs = 1308 fps (way too much recoil for me)
44 mag 265 gr Hornady FP:
1.18cc/17.3 grs = 1118 fps (good accuracy)
At $10 a lb in my door, I'm liking WC820 (n).