Re: Need help with the winchester.
The grooved slide handle does not denote an expert model, iirc. I was thinking they were used on later manufactured rifles. Both of mine are early ones with smooth handles. The expert has a very uniquely shaped handle compared to other pump rifles. If there is a chance the broken piece of your butt stock still exists, it would be an easy fix that would not look like has been repaired, if done correctly. You rifle should be able to fire short long and long rifle interchangeably. The butt stocks are readily available along with replacement butt plates. If you drop the hammer all the way, can you cycle the pump handle thru? Is there spring tension on the hammer?