http://www.brunoshooters.com/Merchant2/merchant.mv?Screen=SFNT&Store_Code=BSS
I picked up the last 4lb jug of Alliant Steel from Bruno's today. $75 after tax is a steal.
McNett has some loads worked up over in the 10mm forum using Steel. For the price, it very well could be a good "have just in case" also, several people have noted over on cast boolits.gunloads.com that it is doing very well as a Magnum Pistol powder. Seems to be just a little faster a powder than H110.
Currently, Alliant does not list any metallic loadings for Steel. It was designed as a shotgun powder intended for steel shot loads.
Posted by "McNett" on Glocktalk 10mm Reloading forum
I had a chance to get out and chrono some loads that I had worked up. These were all 1.26"OAL Win LP primers and Starline cases. Temp 90F elev 5000ft.
G20C:
13.5gr 2400 180FP - 1109fps
7.3gr Power Pistol 220FP - 1028fps
11.0gr 800X 165 Sierra JHP - 1380fps
6"KKM:
13.5gr 2400 180FP - 1240fps
7.4gr PP 220 west coast FP - 1141fps
7.3gr PP 220 Precision FP - 1162fps
9.2gr PP 180 Lead FP - 1366fps
13.0gr STEEL 200WFN lead - 1274fps
13.5gr STEEL 200WFN lead - 1255fps?
12.0gr STEEL 220 Precision - 933fps
12.5gr STEEL 220 Precision - 1141fps
12.0gr 2400 200XTP - 1106fps
12.5gr 2400 200XTP - 1147fps (compressed HP)
13.5gr 2400 200XTP - 1194fps (closed HP)
13.5gr 2400 200WFN - 1242fps
14.5gr 2400 200WFN - 1304fps
11.0gr 2400 220 Precision - 1072fps
11.5gr 2400 220 Precision - 1106fps (deformed)
G29:
13.5gr 2400 180FP - 1051fps
7.3gr PP 220 West Coast - 1007fps
11.0gr 800X 165 Sierra JHP - 1366fps
This is slightly tainted data. The primers were Win non-magnum. I usually use CCI 350 MAG primers. I believe especially with the STEEL loads that it produced inconsistent ignition causing sad chrono readings. This test drives the point home," IF YOU ARE GOING TO USE SLOW POWDERS IN THE 10MM, USE MAGNUM PRIMERS, PLEASE!" I had a lot of fun shooting these, but I am definitely using CCI 350's next time.