The "drop in" stocks make change-outs pretty easy. I think the Mosin looks cool as a hunting rifle, and they're pretty simple to work on. When it starts jamming on you, it's probably primer parts stuck in the bolt, so just disassemble the bolt and reassemble it after shaking out the little "rocks" from the bolt head. Reassemble everything and it's good to go again.
My favorite Mosin build is a bench gun... yes, a "bench" Mosin.
Teludyne Tech Industries manufactures a bench gun using a Mosin that's really cool. They add their straitjacket technology to the barrel, cut a custom stock, and drop the group sizes remarkably. Since it's a "custom gun", it's designed to fit you, but it's pricey for a Mosin... about $800.
If it seems crazy to spend that kind of money for a Mosin, think about what they do to manufacture this gun... it's barrel is cut down and recrowned, the bolt is rebuilt to add a standard scope mount function, the action is reinforced, and for a few more bucks, they can add a Timney trigger and cut down the "bolt movement" from releasing the firing pin. They take a solid cherry blank and custom cut the stock to fit both you and the gun.
It's excellent workmanship and the guns shoot under an inch with handloads.