Well I did not get much from the group so I loaded up about 70 rounds and went shooting.
I had a chono but my tripod broke, so I do not have as many velocity as i would like to have measured.
Here are the results for the 223 WSSM. All groups are a five shot from the bench, all velocities are 5 shot average.
Wincherster 55 gr Factory loads 3864 fps, 2 inch
Wincherster 64 gr Factory loads 3394 fps, 2 inch
68 gr BTHP Hornady, 41 gr varget, 3450 fps 1.5 inch
55 gr Moly V-Max 41 gr varget, 1.5 inch
50 gr V-Max 41 gr varget, 3/4 inch
50 gr Barns Varmit Grenade 41 gr varget 1 Inch
68 gr BTHP Hornady 45 gr IMR 4350, 1.5 inch
More information is will come as soon as I get a new tripod for my chrono, I have about 30 more rounds loaded in IMR 4350 and RL 17, to try out. I just rand out of time to day.
I was shooting my killer deal, Browning A-Bolt 22 inch barrel, 1-10 twist. I was pleasently suprise with the result. I know the loads are not that hot but I am OK with that.
I also shot My 300 WSM
and was very happy with the results
I have heard alot about RL-17 powder so I gave it a try.
I loaded 68 gr of RL-17 pushing a 178gr A-Max
I shot about 20 rounds and my best groups were 1/4 insh 5 shot groups
I was shooting a Tikka 24 in sh barrel with a 1-10 toped with a konus scope.
I will go out again here soon this time with a camera for so pics.