Cost basis for reloads
I have always kept a spreadsheet for what I have spent which includes part numbers and quantities of expendables (Powder,Primers, Bullets, Brass).( But intangible cost of case prep not included)
It automatically updates the cost of production in two ways - total per round cost each and also cost per each in each category (2506,3006,45acp,9mm, etc.)
Bottom line - to date:
Overall cost savings vs factory loads (updated on each purchase and normalized as to date purchased and dollar "actual value" in purchasing power with analysis of variance quantifiers and standard deviation normalization adjustments.
Overall, 18 % less than factory up to 100 rounds per category. Up to 200 22 %, and then to 500 rounds 29%, this is normalized total % for all rifle and pistol.
Individually, but understand it is for my individual choices of bullet, primer and powder, 45 ACP (Most loaded) 42% less than factory, 44 Mag 40% less, 2506 = 32% (use expensive brass), 3006 =35% less(expensive brass), 9mil = 50% less, 308 = 22% less(expensive brass), 243= 31% less, 6.5xx = 16% less, . Varies with number of loads per case. (just another mutually dependent variable)