It looks like a piece of 7/8" x 1//2" x 10" steel bar clamped in my vise will slip inside the Stevens 200 action and serve to hold the action firm while I unscrew the barrel nut. This looks like an easier approach than using a barrel clamp on a tapered barrel. Will this work?

Also, I am having difficulty getting the magazine out of the Stevens stock. What is the secret?

Thanks,
Richard