Iv used it in my SRH 44mag & 454 Casull, works well with heavy bullets, used Hornadys XTP's and Speers GoldDots GDHP's, results were good, but could not achieve what the W296 could, tighter groups using the W296, crisper egnition as well, found that Lilgun can spike with curtain loads, can go from moderate right to a very hot loads, I hear the cast people like Lilgun using heavy bullets 300gr up, what got me to try it was the lower pressures resulting in the same FPS the Win 296 & H110 produced, Looked good on paper;)For some reason I did not feel a decrease in felt recoil either. Not saying you might find a sweet spot using the LilGun, I feel for the calibers Im using the old stand bye W296 is more suitable for what type of bullets Im using. might be a better powder for cast bullet types. I had a friend that swore bye Lilgun using cast. Aim small hit small. RAMbo.