I used pellets for years after using Pyro loose. Then switched to BH209 and filled tubes at home before hunting or shooting at the range.

I find it every bit as easy to pour out a tube as i do dropping in 2 pellets in the field. There is a tiny bit more "prep" time but i can do it in comfort and without distractions.

Pyro pellets are dirty and T7 pellets gave me a terrible crud ring. The mags were even worse. That little bit of prep time now seems to not matter since i no longer need to swab between shots for best accuracy.

Now i set my accuracy/performance standards higher and can achieve my goals easier and im more confident in the loads ive chosen. Im also a range junkie and love tailoring my loads a bit finer than pellets allow. I also shoot a ML during all seasons and its not just a seasonal thing for me. IMO seasonal shooters are probably better off with pellets but if your burning several pounds a year then loose has the advantages an enthusiast wants to achieve.