02-18-2020, 02:24 PM
I did a quick back of envelope calc, and the variation of 0.3 grs in bullet weight means 0.0021, or .21% difference of your 143 gr bullet. Whereas a 0.2 gr difference in powder weight means a 0.006, or 0.6%, difference. So weight-wise, in terms of the physics, powder variations should cause more variation than bullet weight delta's... maybe 3X more than bullets'. I might even suggest that the best accuracy comes more from a repeatable, consistent pressure wave generation and propagation (ie, the firing of the powder charge) through the barrel, than a 0.21% delta of accelerated mass. In this propagation, micro-seconds matter.
Plus, perhaps point out that weighing brass is a method of comparative case volumes: since that shooter already uniforms the brand, even production date, and Oal of the brass... so weight is the proxy for uniform volume -- and volume is what will go into the pressure-progression of the powder when it fires.
My IMO from this is that, certainly weighing bullets might help...... but if so, it is one of the last, if not THE last, variable with the smallest ROI, for the shooter. This would be in line with comments that BR shooters are the ones who might want this step in their routine. I shoot mostly from the bench but am not a BR shooter... nor a Jedi master Lol!!).
Plus, perhaps point out that weighing brass is a method of comparative case volumes: since that shooter already uniforms the brand, even production date, and Oal of the brass... so weight is the proxy for uniform volume -- and volume is what will go into the pressure-progression of the powder when it fires.
My IMO from this is that, certainly weighing bullets might help...... but if so, it is one of the last, if not THE last, variable with the smallest ROI, for the shooter. This would be in line with comments that BR shooters are the ones who might want this step in their routine. I shoot mostly from the bench but am not a BR shooter... nor a Jedi master Lol!!).
"Down the floor, out the door, Go Brandon Go!!!!!"