Yes, SS197SR can be reloaded with the Hornady 40gr V-Max bullet to duplicate the SS197SR load. The SS195LF load is also available but uses a lighter 28gr aluminum-cored bullet for higher velocity and lead-free primer which has some concerns as to viability for long-term storage. While not offered directly for civilian sales you can also get the new SS198LF which is basically the SS195LF loaded to higher velocity. Elite Ammo makes custom ammo which surpasses it. HTH...Can you relode the SS197SR ammo for the 5-7 or do you have to buy it???
and is that the only ammo you can get for this gun??