One of the challenges, and joys, of a wildcat, is that you have to do some homework to reload for it. I would suggest that you reload for a standard cartridge, if you have one, as practice. However, as an AI round, some would argue that it isn't a wildcat, just an "improved" version of a standard offering. Either way, if there isn't much book data for it, especially with modern bullets, then you have the challenge of figuring out what powders to use, and how much. As ShotgunSmith wisely stated, just start with 7X57 data and work up, watching for signs of pressure.New to reloading, i purchased and read many reloading books and have Ackley's book. Looking for more detailed reloading info for a 7x57 A.I. ???
.Ahhh, one of my favorite cartridges!!
Best load developed for a custom Brazilan M1908 Mauser was the 162 Gr Hornady BTSP at 3.080" COAL. - 2907 fps
51.5 gr VV N550 powder
CCI BR2 primer
Remington cases fireformed to AI configuration.
2nd best was
160 gr Nosler Partition @ 3.160" COAL - 2923 fps
51.5 gr VV N550
Remington cases fireformed to AI configuration
These were hunting loads developed for mule deer and elk. Might be a bit heavy for whitetail, antelope, etc. As always, you should NEVER rely on internet offered loads without reducing a good 10% and working up as you watch for pressure signs. These loads worked well for my rifle, however, every rifle is a rule unto itself.
I also have hand loads running from 140 gr bullets to 175 gr, if interested. You can PM (Private Message) me for more. No need to clutter up the board with them.
I have one of these and it is a joy to shoot and very accurate. Which powders have you got the best accuracy with? Which for velocity? I know you like the VV powders, but I don't have any of the slower #'s. Mine likes RL22 and 19 and IMR4831 for bullets 120g and up.Took an elk and several deer with the rifle until the bore got sorta dark. Had it rebarreled to 6.5-06 and haven't looked back. All the accumulated brass is turned into 6.5x257 Robt's AI, for a customized Swede.