by 1911fan on Sun May 02, 2010 11:43 am
bambam, were you weighing each load into your cases or using a powder drop? if you were using a powder drop (measure) and you had not messed with the powder drop during the run of ammo, then I would pull two random rounds and weigh them, if you get anything odd, pull the rest, but if your dead on with the two you pulled, and you did not move or adjust the powder measure, then you should be fine.
I have two electronic scales, one a dillon, one a RCBS. Both work fine, I use check weights regularly, I find I hardly ever have to reset zero and I get a very consistent reading as I run stuff thru. I do not get that climb that Sam documented in his post in either of mine. I still have an old redding jr. beam scale, and I use it regularly just in case, more so lately since Sam has made me question it.
I try to model my patterns on consistency, Trickling powder is less reliable than volumetric measuring, I use the same amount of pressure (or try to) in seating primers, and trying to do things at the same speed so the vibrations in the powder measure are about the same. When I do this sort of stuff, I get very low SD's in velocity and I tend to get very good results on the paper or the animal.