I have 10's of thousands of dry fires on my AW and have never had a problem I know of another AW that has close to a million dry fires never had a problem either.
Good score, I would have bought twice that much. Granted I have been doing that for years that way I always have two years worth of HMR for shooting P-dogs.
Re: Starter .30 cal can?
I would go with a Thunder Beast Arms or the SAS.
Like Deadly said ATF items are not east to get so get what you want in the first place.
Cheers,
DM