My 45-70 of choice is a Gibbs Frontier Summit Rifle by Navy Arms which is based on a rebarreled Lee-Enfield SMLE action with a sporterized walnut stock. This action is rated at 45,000 cup so can easily handle Marlin levergun level loads though I personally will not go this hot for my shoulders sake. There is one available on gunbroker.com right now. I'd post pictures of mine but i'm not at home, and on a webtv ARGH.