A while back Dave (schuetzendave) told me they'd had better luck with AA #9 than with 4227.  I decided to do a test today with my CPA and it seems promising.   The muzzle velocities were way more consistent and I didn't even have to raise the muzzle like I do with my IMR-4227 loads.  It burned a little cleaner too.  I used Fed LR magnum match primers.

Best 100m 5-shot group was about 1380 fps and measured 0.6".   There also seemed to be something good at around 1420 fps but the winds were twitchier so it's not a fair comparison.

Chris.

What bullet weight you two using

I’m fairly new to the Schuetzen world. This is my second year of using a new CPA in our local matches.

However, having shot almost 30-years in CBA matches, I can recall Accurate #9 powder being used quite often by shooters in the Plain Base Bullet match rifle category. It seemed like everyone in the category used that powder.

I did use #9 in some revolver loads. But today it’s quite interesting to learn of the variety of other powders that you guys on this forum are fooling with in your single shot rifles.

Tom

Chris,
I don’t shoot #9 but with that 3 groove Borton/Darr designed bullet, I have upped my velocity using 4100 powder to just under 1500 fps in my 14 twist Green Mountain barreled high wall and it is shooting very well. I just finished a CBA match and despite a few wrong guesses when reading the wind came in a close second to the match director who is one of the best single shot shooter in the area who holds a couple of CBA national records. I used to strive for around 1450 but accuracy fell off in the wind. Out of the 40 shots today only a couple surprised me with their impact.

My Ballard likes 13 grains of aa9 with the saeco 200 gr bullet lubed with Bullshop NASA.
Have found aa9 to work well in the 357 rifle also

Wait, wait!  You were shooting a 210 grain bullet in a 25-20 SS?  How long was that bullet?  Was it perhaps a 110 gr bullet instead (still pretty heavy) or were you perhaps shooting a 32-40 instead?  I would definitely like some tried and true recipes for my 25-20 SS using AA#9 or H108, but I don’t know where I’d start looking for a bullet that heavy.
Froggie