FWIW, I recently purchased some cheap Remington 180gr. Core-Lokts in 300RUM to break down and use the brass for my 338 Edge. Never having any luck with them in my 280 for years, I decided to weigh the powder charges of each one. My brother feeds his 06 with them and they always work fine for vital shots. But after witnessing the waste that comes from a flyer into the shoulder, I decided to try and sway him away from factory ammo and let me work up some taylored loads for him. Anywho, after weighing a mere 22 charges, I found a 1.5gr. variation. I broke down 5 boxes total from same lot. Core-Lokts are popular, no doubt, and work, but if I didn't roll my own I would spend $15-20 more for ammo made with higher quality components and under lower volume manufacturing conditions, some brands even hand loaded. When you get the chance of a lifetime, and being ethically minded, I like to be prepared to aim small. New member and happy to be here!
That’s good info! I used to weigh all my factory match .223 loads and separate them if needed to closest weight, just for fun. I think I will do the same for the 30-06.