I just found a good deal on a 10 inch Contender barrel in this caliber. I am looking for powder recommendations. After reading a couple of online articles and looking at some older loading data, I find that the recommended powders are not available locally. No 1680, 4227, or 2015. I have a small amount of 296 and full cans of 2400, Lil Gun, 2230, X-Terminator, and Tac. Bullets will be 110 and 125 grains. Any recommendations on these powders, or others I haven't mentioned? Thanks.