Originally Posted by Broz
I have kept track of mine in a log book. When I had the std .338 LM built I bought 2 boxes of Lapua brass (200) The loads have always been 91.5 or 92.5 gr of H-1000, the majority fired were 92.5 not a light load by far. Every shot being 300 gr bullets @ 2795 ~ 2805 fps. I have never opened the second box of brass as the first 100 are doing fine. Most of them have been fired 14 times and some will be loaded for their 15th time soon. I do anneal, and use bushing dies to only size what is needed. The primer pockets are all still tight and very consistant. I use a hand primer tool and every primer in all 100 feel the same going in. I still have the 2nd box of 100 cases, guess I will use them for the next barrel, but this barrel still shoots as good as it did new (1/2 moa to well past 1000)
I wanted to post this as I feel it is solid data of my own and some might be interested.
I do find this interesting. I'm sure that the annealing and minimal sizing help extend the life, but as far as I know would have nothing to do with the primer pockets remaining tight. That brass must be some good stuff. Especially since your load seems pretty standard to what others use (close to max) and around what other Edge users get with same performance.
I still have the question about improving a cartridge and brass life. I thought I read somewhere that if you take the taper away and sharpen the shoulder that the forward flow of brass is lessened (less case stretching). I'm sure neck or minimal sizing helps that as well.
I think I need to get into annealing as well considering my brass probably gets work hardened by necking up before I even load the first round.