I think some of you are placing too much emphasis on the rifle for PRS shooting.
From what I saw, having a light recoiling rifle had a significant advantage over the 308s because the shooter could call his own shots. 223s and 6mms had an edge in this regard. Rule says nobody can be "on glass" while you're shooting so no feedback if you can't call your own shots.
One of the guys in our squad came in 20th place with just a factory Remmy and floor plate with a 1 inch scope, so the rifle was nothing special and his hand loads were just thrown, not even weighed.
Strategy also plays a large part. Some guys wouldn't waste time on some of the long range "sucker" targets. Instead they used more time on short range more makeable shots. 90 seconds to break off 9 shots with 3 each at distances like 350 yards, 550 yards and 760 yards is moving quickly, so you have to prioritize your efforts. Few guys would get all their shots off, never mind actually hit something. On many events a score of 1 or 2 was a good score and a 4 was great.
The most important thing without exception is that you need to have good zeros from 100 to 1700 yards.
It's a pain for most of us to find a place to get such zeros but you gotta have them if you want to doo well. Again strategy can come into play even here. If you have good zeros to 800 yards, you'll have what you need for the "more makeable" targets. Your strategy may be to forget making a real effort at the longer shots.
Oh ya, one event had us shooting out to 1640 yards and that turned out to kill 4 scopes in a squad of 15 shooters. Cranking your scope that high takes the pressure off the internal springs and the recoil moves them. After that everything went south. In my opinion many of us would have been better off to crank to 1000 yards on the scope and then just hold high, this would at least protect the scope and keep you in the game... You know ... live to fight another day.
Knowing hold offs was also critical. Having mil dots with moa clicks was a death sentence. The clicks had to match the reticle and FFP was a clear advantage because you'd zoom a lot.
Think a little like a golfer... we all want a monster drive but its the short game that makes your score.