I totally pieced these rifles together from a variety of manufacturers. So I don't know or recall specifics about the spring and weight. Barrels from one place, hand guards from another, forged upper and lower from another, fire control kit from another. The only part that bit me was the "Bolt Catch Release" So I took pictures and sent it to the vendor and they just couldn't understand why the small tip didn't work. It made the maiden voyage a single shot that couldn't hold the bolt open.
I found the wider tip somewhere.
24 inch SS 308 scope is a 4-48 power 65mm objective. So I can get on varmints faster at long ranges. The Speer 125 gr TNT can really red mist critters with Accurate 2460 down loaded to 3200 fps 48.8
LOL, your picture of a C-130 reminded me of why I hated AF guys. We had to go some where quick so they sent us over to catch a ride on a c-130. They had us sitting on cargo nets and gave us this bubble gum looking stuff for hearing protection and we took off. The rear door couldn't shut and seal, we were all freezing to death and the bastard AF guys had fur parkas and gloves and they were laughing. It only had a out house on the rear drop door and the flight was something like 14 hours. We should have kick all their asses and taken their coats.