I've mostly been using Varget and starting with Reloader 17, which(Reloader 17) is actually made in Swizterland by the same company that made the powder for the GP11.
Can use the same load of RL17 as in GP11 IF Berdan primers and GP11 case are used. Boxer primer loads should be reduced.
Pierre of Swiss Products have done testing with IMR 4064 and 175gr SMK;
http://www.swissrifles.com/sr/pierre/data.html
Can use the same load of RL17 as in GP11 IF Berdan primers and GP11 case are used. Boxer primer loads should be reduced.
Pierre of Swiss Products have done testing with IMR 4064 and 175gr SMK;
http://www.swissrifles.com/sr/pierre/data.html




















































