Why can't a PGW or another rifle in the same "class" that is designed for field use also be used as a "purely precision" rifle? These rifles are used in the military and are designed to be able to deliver "one shot, one kill" precision at very, very long distances therefore should be able to deliver outstanding accuracy while sitting absolutely still on a gun bench with no wind at the range shooting developed loads. These guns use very high quality components and made to very tight standards so what is stopping them from achieving top notch precision?
This is all about compromises.
Can we get 100,000km wear tires that hold racing car G's? Nope
Can you drive 200mph and get 40 mpg? Nope
Can you build a rifle that will stand up to the rigors of war where function is paramount and shoot precision grade accuracy? You could but not with conventional design.
I know I will hear the cries of horror soon but there is a solution and we will likely start to see this on more and more rifles in the coming years.
Floating bolt heads.
Yes, the same set up as in a Savage. In fact, given the robust growth in sales and influence, we will start to see this brand show up in more working environments.
And as professionals use and understand the positives of this design, more will be used and more variants will be developed. There are already a couple of true custom actions for BR work that use a floating bolt head so we are not far from this paradigm shift.
so back to the orig question. The reason why working rifles dont shoot as well as precision/BR rifles is simply to do with clearance and the ability to function when dirty.
by design, the solid front locking bolt head HAS to have slop inorder to function under any and all conditions. Just run a Mauser sometime and you will understand BUT the lock up on these workhorses is still very good.
Not precision rifle good ( in orig form) but good enough.
By comparison, play with a BR custom action and you will see vault tight lock up. some actions have such tight tolerances that will not function well if not properly lubed. how long do you think these actions will work in the sandbox?
The floating bolt head rifle can lock up rock solid and the rest have slop since the bolt body has no influence on the firing cycle. just dry fire a Savage and you will see the huge amount of bolt movement when the sear drops. yet, these actions can provide superb accuracy.
For now, the world is still on the solid bolt front locking train. This design has compromises so you will continue to see two levels of performance. I will say that designs like the PGW have elevated the performance of the working rifle to a whole new level.
In the past sub MOA was something to be revered. Now 1/2 min is off the rack and ho hum. that is amazing progress and credit has to be given to those who have designed and built such a great shooting working rifle using 'old tech'.
But as in my last analogy, NASCARS are NASCARS and their design limit what they can do. They will never out perform a F1 car in a pure road race.
But start rubbing fenders and that F1 car looks pretty vulnerable.
Now make a NASCAR weigh 1/2 as much and change the suspension and drivetrain and you have a totally different animal.
Jerry