Good rifle, just was over engineered,...Teddy Roosevelt, and the Rough Riders, loved the performance, but hated that the Spanish Mausers reloaded via stripper clips, at a rate of 3 to 1.
They were rather cumbersome with the side loading, and lack of a rapid reload under combat. However, a potent round.
Seems ol' Teddy was willing to try the than "new" 1903 Springfields.....seemed to compensate for the San Juan Hill thing....

Utilize the previous posts for step by step. I have shot them. They are very similar to a K-31 Swiss, or Swedish Mauser.
It's just that bolt and side loading thing....