loaded up 501 cast boolits ...100 grain cone nose.
inspected all the brass for cracks, all the primers for good seating, c.o.l. is real good, checked each one for plunk fit. all is good!
but something was itching my think tank...so... i re-checked the load books for my load.
i loaded each with AA#5 and my dispenser ran each off at 4.6 grains ...and it was VERY consistent!
wrong!
i mused that this was too hot a load...and i was right.
first ....i could not find any loads for that boolit , or grain weight ...and none using aa#5.
so where tyhe heck did i come up with 4.6 of aa#5?
i re-checked 5 manuals .....it's not there!
from what i am able to find, 4.6 of aa#5 is nearly a double charge.
sig sauers are tuff little guns but i don't think they'd stand a chance with a KABOOM load!
so check good....then re-check again.
don't know how i initially missed this!