Originally Posted by 3% outdoorsman
I've never put much thought into it but I think the reason some bench rest guys load at the range is to load and shoot in same humidity and temps.sooo kinda funny you posted this I'm loading today and was thinking at least I'm loading in the same type environment I'll be hunting in.
I load in my basement probably always humid no HVAC downstairs but I'll probably never see or notice the difference.not sure what else I can do or if matters

That too but mostly to keep the rifle in tune for conditions. We usually go up or down on powder charge a few tenths or so depending on the last group and how fast the temp and humidity is changing for the next relay. Sometimes we might change bullet seating depth or neck tension. Many of the shooters load in their motor home under controlled conditions. I never could afford one. I do think that loading under the reloading shed, where the conditions are the same as the firing line, has its advantages. A match is often won or lost where a (5 shot for 5 targets agg ) by group sizes that only vary .050 to .100. I am talking custom benchrest rifles with Kriger, Bartlin, Broughton etc barrel on a Bat, Borden, Stolle etc action. We also use custom seating and sizeing dies. I doubt that would make much difference in factory rifles. That said. I have improved factory rifles by using bushing type FL sizing dies and adjusting to where they size just enough to chamber smoothly. and using a seater that gives me constant seating depth. I seat the bullet about .005 to .010 off the lands

Last edited by stoolshooter; 10/30/22 05:08 PM. Reason: Add