My buddy is selling some guns but has no idea the value. I thought you guys could help.

1- Winchester #70 -7mm with a Leupold 2x7 varixii scope . Serial #892892 A couple minor scratches and dings from use. I would guess 80% not knowing much.

2- Remingtom #700 22-250 with a Baush & Lomb Balvar #1 scope,
serial #147113 Same condition as 7mm

3- Winchester #100 308 semi auto , no scope, serial # 41580 Good condition but some worn finish on the stock .

4- Mossberg 183 b-d 410 guessing 50 bucks on this rat shooter.

Thanks for any advice.