17 rem is a bit of a different animal to the 222. Depends what level of accuracy your after aswell. If they are decent rifles I think it would be challenging but realistic to end up with a load that shot under 3/4 in all. 1/2" probably not.Maybe it's possible for a couple rifles, but 5? Good luck. Not saying it can't happen, but my friend once presented me with a pair of Remington 700s in .17 Remington that wore consecutive serial numbers and asked me to work up loads. Now I realize that consecutive serial numbers don't guarantee that they were actually made in tandem...just when the numbers were stamped. Anyway, no matter how hard I tried, the best loads in one didn't make it in the other. Both had distinct likes and dislikes but were equally accurate with their preferred loads. And that was a search for the "universal" load for only two rifles.
Yes, double yes!Imr 4198, 52 gr bullet of your choice
Hornady 50 vmax is super accurate in Remington Accutip factory round.20.5 grains of H4198 and a 50 vmax. My L461 varmint and Howa heavy barrel mini shoot both sub 1/2" and L46 sporter shoots in in less than 3/4".