I bought the Dan 8" pellet a while back. I was initially a bit disappointed as I kept getting misfires. These cleared up when I took some advice on pellets from here (CO2 Target & Geckos were recommended) & took more care seating them in the cartridges.
Been fine ever since. I don't bother with the speedloader. It is a bit of a fiddle loading the pellets into the cartridges every 6 shots, & I'll def. be buying some more. Think they're circa £20 for 6.
HTH
Bru
Webley Mk3 x2, Falcon & Junior rifles, HW35x2, AirSporter x2, Gold Star, Meteors x2, Diana 25. SMK B19, Webley Senior, Premier, Hurricane x 2, Tempest, Dan Wesson 8", Crosman 3576, Legends PO8.