Home Forums Hunting & Shooting Gunsmithing Need Help: Model 70 WSM Bolt Stop

Piecing together a rifle from a barreled action I picked up cheap. I bought a bolt stop from Mid West Gun Works and I bought the wrong one, I think.

I bought the Short Magnum (K) version, but it's too long. I compared the length to my model 70 300 win mag and they are about the same. Am I missing something or do I need to order another bolt stop?

Thank you,