Stopped by my local gun shop for the first time in few weeks and spotted what I thought was 1861 Springfield but it had some really strange features. First was the caliber. Instead of a .58 caliber barrel this rifle was .41 caliber with Williams front and rear sights mounted. The front band had 2 swivels attached, one stacking and one regular swivel. The lock was blued and marked 1873 and the hammer was case hardened. The metal appeared to be refinished and the stock looked old and had letters carved into the butt. Anybody have any idea what this could be? The shop was asking $250.00 for it.