From a 10" barrel the Max will hold up well to the Herrett in performance. You really won't see any advantage of the Herrett in less than 14" tubes, to burn up that added propellant. A 12" in .44 mag will handle similar to a 10" in mostly anything else due to the the bore size, as was said previous. The additional 2" will benifit terminal ballistics though, as well as tame the "flip" a bit. If your frame is very early generation, it may be troublesome to open with newer gen barrels. Fox Ridge can convert it to "easy open" for about $35, as well as convert AA frames/barrels to standard. You will find that rimmed cartridges are more break-action friendly that rim-less, most cases they will fall out of the chamber after firing where you have to dig out the .223 and 6.8 and 35 Rem and the like. The original 'Tender is superior to the Encore (boat anchor) in every way. You can shoot higher pressure loadings in the Encore, but if you can't kill it with the 45/70 it ain't killable ;-)