How important is using the same powder lot # in developing a load and shooting it for target accuracy? Should this variable be included in the long list of the others that we address with a rifle and the loads when trying to get those bug hole groups. Is there anyone who has spent time looking at this detail and has some deffinate results? Is it worth the time or not?
Over the years, I have read that one should go through the load development thing each time one gets more of the same powder. Some times I have and some times I haven't. I think I have noticed some variation in group size overtime but never have taken this serously. I know that the Army does. As I recall that variable was included in the 155mm fireing data.
What prompted this question was that my supply of IMR 4227 was getting dangerously low, as it usually does about this time. And I allways wait to buy more from a guy that comes to most of the guns shows around these parts. Talk about a land office business! All I ended up with was three one pound cans of widely different lots.
After doing everything else with rifle tuning,casting,sizing, and load developement etc.and nowhere else to go,I might take a good look at this just for the fun of it.
Wonder if I mixed those three cans of powder together.....? Wonder if it would make a difference...? Is this as good as the rifle/load will shoot.....? Or am I still missing something?
RD