I have had a savage since the the 10ML2 platform arrived. I have typically shot the 4772 at 48 grains with 300 grain hornady projectile. The powder is consistent, degrades quickly with time, and has been unreliable in bitterly cold weather.
I have also tried Reloader 7. I found it to be consistent in ignition but it seemed to foul the barrel quicker than 4772.
I have a barrel of 4759 but have not tried it.
I have a barrel of AA5744 but have not tried it.
I only landed with 4772 because it was easiest to find.
My experience was the sabots were the defining factor with my gun.
I was stuck with MMP short sabots and .452 bullets.
I switched to smokeless muzzleloading inc barrel for my H&R that uses IMR4198.
I found that this arrangement is not as tempermental as my savage.
I might develop loads for the savage using 4198.
Any suggestions on loads?
Right now I shoot 65 grns of 4198 with 250grn hornady ftx.
I am inclined to feed the savage a similiar load if it can handle it.
I feed three guns during season and would like to get them on same loads if possible.
I have h&r with smi barrel and am ordering a second.
Cousin has 10ml1 which is not as tempermental as my 10ml2
I have a 10ml2 which is always in play because it always has been.
IMO The 4198 wont put up eye opening chrono numbers but it is very consistent. More consistent than any of the faster powders recommended by Henry Ball.
Not sure how much you will lose with 24 inch barrel and slower powders.