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The Hodgdon Reloading Center on-line site has data for up to 63 grain bullets. My Hornady, Nosler, & Lyman manuals also list load data for 60 grain bullets. I've never loaded for it, so can't offer any advice.
Two other powders that work well in the small case 22 centerfires are IMR8208XBR & H4198. Both are less temperature sensitive, fill the case well & give good accuracy. If you can get some load data for them they are worth trying.Thanks for the help Paul. I think I'll try starting at 10% less than the max load for the 63 grain and then see where I end up. I'm using H322, H335 for loads at the moment so the Hornady loads you suggested won't work. I know h4895 is an excellent powder so should pick some up...
"Maximum" published loads for both the .222 and .222 Magnum tend to be on the conservative side (they stay within SAAMI pressure standards). However, every rifle is an individual and even an otherwise "conservative" load may generate unexpected pressures in some rifles. It is important, before venturing outside the parameters of published data, to have ample experience in reading pressure signs and is also helpful to have a chronograph available. If you're not confident that your experience is sufficient to vary from established standards then always play it safe.I remember reading your other post about the 222R having lower pressure standards than the 223 but more than capable of holding the same pressure. . . . With this in mind, is it safe to push beyond the suggested max loads? I'm relatively new to reloading
The little 40's seem to be fully as effective (both in range and accuracy) as the heavier bullets, and on small targets like prairie dogs carry ample energy to make instant mush of them. The last prairie dog shoot I went on I loaded 40 grain Nosler Varmageddons in a .222 Magnum and had a great shoot with it. But my favorite prairie dog rifle is a .221 Fireball with the same bullet.I shoot 40 grain bullets in all my Hornet, 222, 223 and 222 mags
On the other end of the spectrum, sometimes there is a need for a good deer load in a .22 Centerfire.
That seems a pretty good reason. Down here in the American Southwest our coyotes are pretty scrawny and even an frangible 40 grainer is adequate. But Northern coyotes might be twice as big and have a thick winter coat, so a heavier bullet is probably a wise choice. And certainly for a hundred-plus pound wolf you need a fairly stout bullet.the intention behind 60s in my 222mag is for coyotes and maybe a wolf