It's been quite a while since I've had a Sterling, but another is headed my way.
My first was the proprietary threads, close to Raptor spec, in a navy ano. I don't believe it was adjustable velocity.
The one coming my way is Spyder threads, also not adjustable.
I'm wondering - how many parts are the same from these two gens (both bronze and ... was it Turbo?) and the modern STP? Is each generation 100% new, or are bolts, hammers, pickups, or valves interchangeable?
My first was the proprietary threads, close to Raptor spec, in a navy ano. I don't believe it was adjustable velocity.
The one coming my way is Spyder threads, also not adjustable.
I'm wondering - how many parts are the same from these two gens (both bronze and ... was it Turbo?) and the modern STP? Is each generation 100% new, or are bolts, hammers, pickups, or valves interchangeable?