DO NOT mix propellants..... It could cause dangerous pressure spikes!
Starting out, ALWAYS, ALWAYS measure loose powder by VOLUME. Until you become very versed in loading procedures and WITHOUT FAIL use the proper conversion numbers provided by the propellant manufacturers, measure by volume. DO NOT exceed the manufactures recommendations for your rifle.
You need a volume measure like this:
Thompson Center U-View Black Powder Measure 15 to 125 Grains 5 Grain
As for "what I think" about propellants, I would certainly go with BH209 above all else. Its just that good. Unless restricted by law, you can't obtain it or, you're shooting a rifle not capable of shooting BH209, its the only propellant I'd shoot from a production muzzleloader. And no........ I don't own stock in it, I feel its just that good and so do many other shooters.
My second choice, would be Triple Seven loose. As far as the White Hots, I've never shot it but, know a couple shooters who have. They switched back to BH209.
My last choice in a production rifle, would be pellets, then it would be T7 pellets.
Primers............. If you shoot BH209, at minimum a WIN209 and preferably a CCI209M of Federal 209A. If you shoot loose T7, then the primers you mentioned above should work fine. If you shoot pellets, then use DESIGNATED muzzleloader primers.
Bullets............. The 250gr SST is used by a number of shooters with great accuracy and good success on game. My personal choice is not an SST, but rather a Barnes 250gr TMZ. There are excellent bullets, good bullets and one being the poorest bullet. The Hornady XTP is a great short to medium range bullet, with some having excellent results to 150yds.
I bought the SST-MI today. THey did not have any barnes and only TC and Accurate. So this was all I had that even fit close to your recs.
Primers, No Fed or CCI in 209. Got the remington STS primers.
I am going to take a trip to SPortsmans tomorrow I hope and try to see what they have… At Least I have the 209 powder… Now I will look into the volume measuring thing you said and get that…
ANyway, Thanks for the help…. and your opinion matters!!!!! You are seasoned and know how these things work!!!
Thannsk
Mario
My opinions only. Hope it helps.