Since this is Dave's thread, and it is a good question, I will give the best answer I can, realizing that there are a lot of variables, and even unknowns, at this point. First of all, any cartridge has a fairly broad range of life depending on several things. Worse case: Are you running max pressure, are you running long shot strings and heating the barrel, what are your cleaning practices, what quality is the brass?
We have SOME data on the cartridge and some data on other cartridges using ADG brass.
On the brass, I have heard a lot of positive from those who have used ADG.
Most of what I've heard is 10 to over 20 firings. We will be testing some soon in several bore sizes by several clients. I expect everyone to do honest assessments.
For the sst shooting PRS, I expect worse case could be as low as 1200 or 1300 to well over 2000. If you are running loads with a 147 class over 3000' in long strings, you will likely be around 1500 rounds. If you are using a load like our 4895 load at 3000+ with a 130, 3000 rounds would not surprise me. A high pressure hunting load, I would guess 2000 or so rounds.
So far with the ss, which has been around longer, we are at 1700-1800 with high pressure loads not running PRS like shot strings. I expect some may go more or less. This is the best I can tell you at the present time.
For cartridges that are close to 264 WM velocities, I feel this is pretty darn good with sub 3" coal.
These estimates are made using target accuracy. Hunting accuracy could be higher.
