I know you played with the blue dot loads for quite some time. what about temperature sensitivity & powder position? you noticed any definite issues with that?
1.. Position sensitivity ? none noticed. ever
2. Temp Sensitivity? between 20 degrees and 100 degrees, none noticed... ever.
Have loaded and fired thousands of Blue Dot rounds, in multiple calibers... in 223 caliber, at least 40,000 or more...
If you have any caliber in mind.. let me and I should be able to locate and pass on the info I compiled, with Charge, bullet weight, from starting to max loads...
Pistol and shotgun powders do have much different characteristic than rifle powder, but they still work just fine in rifle cases....