6-5-300wby

Oh that's interesting….so as the throat degrades velocity drops off then? Is that basically from throat erosion having created some "freebore" that drops chamber pressure with equal charge weights?
That is the theory. I shoot a lot as PRS competitor. I was running a 6XC a few years ago knowing it was near end of life - at start of match I chronographed and velocity was down about 50 fps - at 600 yards I started having issues with good impacts then a flyer 2 foot away. Pulled that barrel after the match.
 
My load. Middle of the road. I can add about 200 fps to that easy but I don't "dog" her.
dYqG7CR.jpeg


This one is with the 131 Hammer. Close to max load

odtl5GC.jpeg
 

Recent Posts

Top