If you go back and look at some of.................
the OLDer Hodgdon manuals, like #17 to #20 you will see that Hodgdon had(still has??) an H-870. It is probably the slowest spherical(ball) powder they marketed; and AA8700 is just Accurate Arms' take on that, so that people would realize, "Hey!! This has'ta be like that!!" Now, 5010-5020 sounds like an extruded IMR powder maybe from .50 or 20MM ammo; as far as it being "...an exact match to..." anything, is slim to none, it appears as though you just may have to do some testing;
But, then again, if you don't want to do the testing, why go out and buy "bargain-basement" powder?? Sooner or later, you have to TEST(so buy)
or NOT TEST(so pay more)
And, here you are.
Now, you might look on e-bay for old manuals, or, talk to some of the more experienced shooters in your organization,
this is where/how you'll be able to dig out that info you need. Its out there.....look in some old Lyman books, older Hornady, and I know Sierra listed that powder in their manuals; this gives you somewhere to start. OLD manuals, keep them around until you feel like you're ready to click off in the next year or two,
by then, nobody else will need/want them, and you can throw them away......GUILT-FREE
