Where to start with a new caliber?

[darth_ritis]

I picked up a barrel and dies to try the new 25-45 Sharps, but they haven't published any reloading data yet. Any ideas?

The closest thing I can figure out is the Nosler recipe for 5.56 with 80gr bullets - 23gr of Reloader 15. (of course I would start low and work up to it) I emailed them about it; they said they don't have load data ready to publish but recommended Ramshot X-Terminator with a drop tube - 27gr to start and not to exceed 29gr. I don't have any X-Terminator, haven't seen any in over a year, so I'd like to figure out something with what I've got.

Barrel is 20" with a 1:9" twist. I have 85gr and 100gr bullets. I have Reloader 15, Varget, CFE223, and PowerPro 2000MR on the shelf.

 

[Sniper260]

Research it... i just found all kinds of reloading info on forums with ppl talking about it. Tac is another powder to consider.. lots of choices

 

[darth_ritis]

I've been researching it, haven't found much yet, which is why I posted this. It would be nice if you would share what you found.