I have two TC Omegas , 1-28 twist barrels, both set up with Nikon Inline XR300 scopes with real world BDC's that are every 50 yds. I am a lifelong ML shooter and have medaled 31 times in NMLRA events. I was hesitant to use BH 209, but now am a dedicated fan of the powder. When I got on their website and learned all the do's and don't do's, my rifles really came to lifet. I shoot 3-4 times each fall, shooting out to 300 yds with a Harvester 300 grain Plastic tip, jacketed .451 slug and a Harvester , black crush rib sabot, made for high pressure and the above slug. I use 100 grains of powder, which is the equivalent to 120-130 grains of Pyrodex or black powder, If I remember correctly. With the cross hair spot on at 100 yds, it will shoot 5 shots into a ragged hole about .750 diameter, and shoots every BDC dead on, within a inch + or -, out to 300 yds. My best 3 shot group at 300 yds was 1.952, center to center, my worst is 3.50. I have taken 22 whitetails and mule deer out to 280 yards using this combo. My main point, is that at first I was having fits with BH209, until I read the instruction's closer and did what they said. Being a traditional ML shooter, I had to make several adjustments in my process of loading and shooting. I have set up 5 more various new TC inlines, the Encore, Impact, and so on, each have utilized the same barrel with different underlugs, and each one shoots MOA or darn close to it out to 300 yds, and this is with the owner shooting them, guys who are not competition shooters, but every day hunters. There is a learning curve with any new rifle type, especially ML's, as they can be more particular to what they take to shoot good.