Hogden's lists H110 with that projectile to start at 23 grs. and lymans lists the max at 24.5. Hogdens suggest only reducing by 3% max to start a load workup. I've heard bad things happen when reducing H110 too much. H110 likes to be pushed! I've always got better results the closer to max I got.
I got the load out of an old speer reloading book. Your probably right I should have ramped it up just a little but I will try it out and see what happens.
Another vote for the top end. My Marlin 1894 plays real well with the XTP's and near max charge of H110. Potent Bambi medicine!
Make sure you give them a good crimp too.
I shot my S&W 629 Classic today with the 21.1 gr of H-110 and I'm not going to complain. It's gonna be just fine. The book says 1200 fps, I didn't cronagraph it but it's gonna get the job done on killing a deer. I'm sure of that. Thanks for the input and on the next 50 I might bump it up to 24 grains.
If you're looking for something in that range, 2400 would probably be your best bet. H110 is pretty much for all out ground shakers! 2400 gives you a lot of room to play with.
I'll second the "no lite loads" with h110. What happens is the stuff doesn't ignite properly leaving you with a bullet that just barely gets out of the case and a chunk of powder stuck together. Had it with 500 s&w and 44 mag.
2400 is a much better choice if you're shooting less than max. I've seen primers blown almost completely out of their pockets with reduced H110 loads - same revolver (629) shooting book max loads showed complete combustion and no pressure signs.
In my Superblackhawk, H-110 is best when pushed to the limits, and with a heavy crimp. Aside from the warnings of catastrophic failure, the groups arent as good, and the loads arent as clean. H-110 doesnt have a very broad velocity spread, and so tailoring a load with this powder is more for gun preference, not velocity/power adjustment.
I have yet to try 2400, but I might have to look into it after this years deer season from all the recommendations for it here.
Lil gun is like magic pixie dust in my 22 hornet. I have yet to test it out on my 222 rem (old stand by is 322) but it is magic pixie dust in my 4 mag. All the speed with out pressure spikes. Meters ok also.