JWP: I have a Model 40 and have heard the action ISN'T strong enough for hotter loads. Indeed, it is basically a rimfire action, made in Canada, I believe. Decent rifle, but with what else is out there, wish now I'd have spent the extra for a _ _ or Browning Micro. Rifle is now relegated to "barn-gun" duty (with very good-shooting factory Fed-Premium 45 gr. ammo.) Instead of handloading for it or re-chambering to a K, I went to a .221 Fireball (_ _ or Remington are the only off-the-rack brands found in that cal. @ present that I know of.) Far more reloading options and much-longer case life. A blast to shoot, accurate, and a little louder than a stock Hornet, with over 25% more energy and fps, it still maintains those features that make a "mini-centerfire" so neat, and safer in built-up areas than bigger c-fires.