You are thinking 3 x 30 gr or 3 x 50?.
As others said-3x50 is way to much, I tried way back 30+50 and 3 x 30,but stuck with 2 x 50.
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Two 50’s of the triple seven is plenty. I tried three twice. That was enough for me. I’m shooting the 285 grain Barnes coppers. 100 yard accuracy is great. I can see no reason to use more powder. I know the blackhorn is the Gucci stuff now but 777 is so easy to use and shoots reliably well. No need to change it up!
I tried out BH209 last year...was not overly impressed with the performance and definitely not the cost.
https://www.oodmag.com/community/sho...Black-Horn-209
A buddy runs 3 50gr white hot pellets in his thompson centre and says it shoots good. I'm betting he didn't even try 2 or he'd probably get better groups or at least as good. But because it states that he can shoot 3 pellets he automatically thinks it must be better. We weighed 2 50gr pellets and it was closer to 80gr than 100gr and how much of that is adhesive holding the pellet together? I'm guessing if someone shooting 3 pellets tried shooting 150gr of loose powder they'd be in for an eye opener.