I used a SSK Industries 14" Stainless-Steel .250 Savage Contender barrel for one year, but then unfortunately a buddy talked me out of it. My buddy still has the barrel, and as such I still get to shoot it from time to time. I worked up two loads for the .250 Savage Contender when I had it, and my buddy is still using those two loads to this day.
One used a 75gr. Hornady Hollow Point at a muzzle velocity of 2950 FPS. I used this load on a couple Prairie Dog hunts, and it worked quite well. Accuracy was quite good with this load, with most groups running between 1/2" & 3/4". However if I was going to load such a load today for Varmints I think I would try a 75gr. Hornady V-Max.
The other load I used consisted of a 100gr. Nosler Ballistic Tip at a muzzle velocity of 2550 FPS. This load was quite accurate in this barrel, and consistantly produced 5 shot groups at 100 yards of less than an inch. I did take one Whitetail Buck with this load, and the bullet performance was excellent. My hunting buddy also took a Whitetail Buck this past season with the same load, and again the results were excellent.
While I never did take a Deer with them, I also shot a few boxes of Remington 100gr. Pointed Soft Point Core Lokt Factory Loads through this barrel. If I remember correctly the muzzle velocity was right around 2400 FPS, and it consistantly produced 5 shot groups at 100 yards of right at the one inch mark.
My only regret in working with the .250 Savage SSK Industries Barrel is that I let my buddy talk me out of it.
Good luck
Larry