Home Forums Reloading Big Game Rifles 25-06 ackley powders?

I have some 115 grain Nosler bal tips and some 117 grain Sierra btsp I’d like to load in my ackley. The only two powders I have readily available in any qty are IMR4831 and IMR4350. Wondering if anyone has loaded either powder with these bullets and gotten good results? Thanks for any info.
Jason

Sierra #VI has data for both powders with that bullet in Federal brass with WLR @ 3.130" OAL.

IMR4350 starts at 47.2 @ 2900fps & goes to 51.4 @ 3200fps

IMR4831 starts at 50.0 @3000fps & goes to 54.2 @3200fps

FWIW, Sierra's hunting load is at max with IMR4831 while their accuracy load is at max with N165.

Same as in the .25-06 "standard." Just add 2-3 grains.

Or add powder until you start to see traditional "pressure signs." The velocity is likely to be far higher than with 2-3 grains more powder, and pressure 70,000+ PSI.

Yep, P.O.’s last laugh. Most AI cartridges give marginal velocity increases - at identical pressures. AI data published in the past used over-pressured loads to impress the reader. And don’t try to tell me that AI cartridges can reduce bolt thrust due to their “minimum case taper” - that’s another of Ackley’s tricks. Bottom line, they look cool and have very minor advantages over their parent cartridges but they aren’t magic.


.

But they were sure fun to work with before we had access to Chronographs!!!!!

What is that saying. More hearts broken with purchase of a chronograph than with addition of GPS speedometer to the boat.