Thanks everyone for their help, I added another 50~ pictures to the google drive folder in the link above. Please look and see what you think about the butt plate. I saw a similar Franz Luck gun with a stock similar to mine and it didn't have the extra rubber middle pad in between the plate so I took it off it was easy just unscrew take off put plate back on w/o rubber pad. Also I have included pictures showing the chamber measurements. The rim measurement was .563, the chamber was .458, and the end of the barrel where the projectile comes out is .361. Of course I didn't get the length of it though I probably could figure it out. There aren't any sold guns to go by for an estimate for price. What do Yall think? Unless you could find some similar guns, I couldn't find any. Thanks for your help again. Hopefully we can figure out the rifle round caliber. One thing I do have a question on is the imperial eagle on the butt looks like it is an "X" more than an "L", so I thought it might actually be a nazi symbol, what do Yall think?