I do every weekend. My Barret is 35lb empty and bare, and 50lbs loaded. You want it that heavy other wise it would dislocate your shoulder when you fire it.

Btw, a M60 is really too bulky to carry and shoot regardless what Rambo and Arnold has shown us. The ammo belt alone weighs 20lbs. That's why it has a carry handle at the balance point. The m14 is a cute little plinker (many hate it because it has little take down power). I find it really only good for shooting squirrels. btw, the current german standard is the G3KA4A1, no one uses or even sells the old fashion G3.