Have a savage 10pc, older law enforcement model thats not threaded for a muzzle brake. Has digital cammo accustock and 20 inch barrel. Im a 5 shot half moa shooter with this gun with handloads on a good day. Ive been thinking about changing to a longer barrel for more velocity for use with some heavier bullets. My questions are one can you mate a stainless steel barrel to a carbon steel action. Two my factory barrel has very little throat jump which I like because I can load to the lands with no problem. Whats the throat jump on the shilen savage factory replacement barrel they claim is a direct drop In with no other work needed? Is the throat long on these barrels? Will one of there barrels Improve my current groups or is 1/2 moa as good as to be expected with current action, stock and bolt etc. Gun shoots good now, last thing i want to do Is spend money on a new barrel and gain nothing.