actually i would but i would much rather have the
http://upload.wikimedia.org/wikipedia/commons/thumb/8/89/Rifle_Springfield_M1903A1.jpg/300px-Rifle_Springfield_M1903A1.jpg
http://world.guns.ru/rifle/rfl07-e.htm
While I'm sure, somewhere, somehow, somebody's chambered an '03 in .45-70 (it would definitely have to be rebarreled), we're betting on which gun Josh chambered in .45-70 Government. That was 3 official rounds before the .30-06 that most all '03s were chambered in, which I'm sure you know, just saying for those that don't. Before the .30-06, was the .30-03, the round that was introduced with the Springfield. It was the second smokeless round in US inventory, but it was round nose. They put a pointy (spitzer, which is really bad german meaning pointed, but is really closer to sharpener) bullet in it and it became the .30-06. Before the .30-03 (also called the .30-45 in the old nomenclature of caliber-powder charge as opposed to the new nomenclature of caliber-year introduced) was the .30-40 Krag, the round used in the Krag-Jorgensen rifles. The 30-40 Krag replaced the .45-70.
You can put the 5 NCR dollars down on the '03 Springfield to be chambered in .45-70 if you want, but I'd hate to take your money that easy. I'll try to think of what other rifles were commonly chambered in .45-70 so those of you not familiar with it can
give me your money too get in on the action too.
Oh and PS - isn't the '03 Springfield already with us in a way? Since most modern hunting rifles are based on the mauser style action, as was the '03, you could almost say the hunting rifle is a sporterized version of an '03 if you wanted to.