I have had one just like the pic since they came out, I shot every combo i could try in 2 years of shooting every weekend. I went from 200gr bullets with blue MMP up to 500 grain .458 bullets with an orange MMP using 9 0r 10 different powders. That being said and the fact that i have set 20-30 guys up in shooting ML-10`s I have found what works and what does not. Remember most loads approach 2100+ fps or over!!! Bullets have to be Tough or they act like varmint pills
powders: AccurateArms 5744 39.0-44.0 grains and VV N-110 38.0-43 grains
primers : Federal 209A (winchester 209 were made by RIO last year and filled breech plugs up in 10 shots or less Federal DOES NOT do that)
Sabot : MMP ONLY! as Savage recomends
Bullets : .451 or. .452 DIA .457-.458 with Orange MMP .452 diam 250,300 grain XTP NON mag Cheap (kills ANY whitetail made)
BARNES pitch the included sabot and use MMP (i use 300 MZ 18 feet to over 320+yrds never fails,never had one stop in a deer@ any shot angle in a)whitetail, pass thru with awesome bloodtrail, And mine ML10 and the load(44.0 5744) was loaned on a Bison hunt Dropped where it stood too and we did not recover it either)
Shockwaves and flex tip BROADSIDE only they shoot flat BUT DO NOT LIKE BONE.
Bonded shockwaves seem tougher!!!!
CAST lead is ok if sized .452 260-320 grains seem best BUT over 150yrds accuracy fell off
Swaged HARD LBT style kill like lightning BUT harder to tune loads for.
if you want real low recoil (none) 225 grain Barnes XPB in a short MMP
36.0-38.0 of VV N-110 or 40-44 grains of Accurate 5744 (my kids shoot this one)1800-2000fps
sorry so long its what I have learned about these facinating muzzleloaders if you want to piddle and tinker you can (I DID) but they are wicked on game match the bullet to the animal.
Indymadcaster