Florida should have a different color and captioned cant count.

Excessive headspace can be caused by several things. Streached or worn bolt lugs, worn lug contact on reciever, different bolt, or worn chamber. Since the bolt #s dont match, It is most likely the problem. To be certain, take your rifle to a smith and he can determine if you have excessive headspace...

Most cleaning products do not work well on salts. To clean after shooting corrosive ammo, I rinse with hot water, Then use a bit of vinigar and water mix, rinse again and then clean with the old Hopps #9. Patch dry, and then oil.

To clean metal parts, Brake Kleen (automotive store) works well, but keep it away from wood finishes.