I bought the magazine type 5mm Remington magnum years ago before Aguila was making the ammo. complete rifle with one magazine was $125. There was a guy in California that was making a centerfire conversion for the rifle plus me sold the centerfire brass. The bullets at the time were a problem since 20 caliber/5mm bullets seemed to all be made with plastic tips and were too long for the mags. Another fellow was selling bullets that I believe were a match for the original 5mm magnum bullets and fit the magazine perfect. After buying all that conversion stuff with the brass and the bullets I discovered Aguila was starting to make the original rimfire stuff so I put the conversion away just in case the Aguila project didn't last and bought their ammo. It's a nice light rifle and has a good amount of power for a little rimfire.