The .308 Winchester's debut caused the Camp Perry 1000yd center ring to be reduced BY HALF IT'S DIAMETER.
Trust me with todays powders bullets and modern firearms design you can have a 30-06 that's just as accurate as a 308.
I began experimenting with shorter rounds and am pleased to have developed one that has the ballistic performance of .243 Winchester with less recoil and much better barrel life
USSR said:Accuracy is a function of the quality of components and smithing that goes into a particular rifle, the type of load being fired in it, to say nothing of the ability of the shooter. Accuracy has nothing to do with what the headstamp on the base of the brass says.
Care to take a crack and the prevalence of the 6mmPPC in benchrest competitions?
Let's see, how many of those New England break action single shots or Remington Model 710's do we find on the benchrest line using factory ammo? Every single rifle used in serious benchrest competition consists of a custom built rifle using the finest of components, smithed by the best gunsmiths to be found. All ammunition is custom loaded using great care and extremely precise instruments. Winning and losing is often measured in thousands of an inch. Benchrest is a game with a specific set a rules. There are certain cartridges that have been developed that are optimized to operate in this artificial environment. Change the rules of the game, and another cartridge may be better suited. In summary, I am sure you would find more accuracy with a GAP built rifle in a non PPC cartridge over a factory 6mmPPC anyday.
So to paraphrase....
Yes, the cartridge type does effect accuracy.
Sure, if you want to ignore the 99% of what REALLY effects accuracy and concentrate on the 1%, knock yourself out.
The .308 Winchester's debut caused the Camp Perry 1000yd center ring to be reduced BY HALF IT'S DIAMETER. To better differentiate the groups shot by the .308 shooters. The rifles used in 30-06 were pretty much the same as those used in .308 Winchester. This is why we hear about "shorter stiffer actions" being part of the accuracy equation.