Anyone else have a Lew Horton SW 629-2 SS .44 magnum with 3" barrell? Great hiking gun.I bought this before Cor-Bon and Federal came out with their 300 gr. loads. Any opinions on the advisability of firing a few (15-20) rounds in the SW? I emailed SW and Lew Horton with this question. No response. What is this gun worth? Thanks!