When it came out, I picked up Clean Shot, Ultimate Pist, Heavy Pist, Buffalo, BlackOut, Tact, Match, Precision and 4350. In the Rifle powders, I have found they ALL build pressure faster than "big names"... All have given me MOA loads and MATCH is my go to for Grendel Bolt Action... and my 204 likes it and Tact. I ordered another 2 lbs of 4350 last year after season and it does deliver good loads for me and deer rifles. All I can say is, TRY IT
If I may give some advice, START LOW in all powders. I have found pressure signs before reaching their recommended MAX. Speed isnt a huge factor for me , as most of my hunting shots are 50-175 yards....so I am not pushing "limits"... I don't see S.W. taking over the market, but I really like MATCH in 4 different rifles.
I use a lot of Ultimate Pistol and Clean Shot, but watch Ult.Pist. in hot temp.'s I allowed 50 loads to sit in the sun during a July day of shooting 9mm and I had 124's running 1300fps....they were a little "poppy" to say the least. Again, please, START LOW with Shooters World...