If you want try something different why bother asking? Like Nike says "Just Do It"!!
No one can truly make an intelligent fact based case for or against it when talking about the bore sizes we use in hunting and competition for rifles and pistols.
I think that Whitworth proved how fantastic a polygonal bore could be just as Ballard proved that microgrove is garbage!
I think that polygonal barrel technology is as relavant as 5R type but the average person has not glomed onto it like they did 5R and 6.5CM that technology came and went with fudd's poo-pooing it because the backwards thinking premium barrel makers in the USA did not embrace it in mass. Just like all forms of rifling it can be made with a button, broach, single cutter, CHF etc.... Pac-Nor made one but then they dissappeard for what seemed like a decade when their shop burnt down. Lothar Walther makes one that I think is CHF. I am not shure who else made one.
They are not all the same and my experince is that they shoot great with a huge selection of weights and designs of bullets but they usually will not shoot as accurate as the best button rifled barrel or cutrifled barrel of conventional design. They will usually shoot longer between cleaning and are easier to clean. They normaly shoot faster than conventional rifling designs. I do not think anyone has set a record with one yet in modern times. A lot of tactical type shooters have tried them and liked them and find them perfectly acceptable.
So almost all of the ones I am aware of have come from either Pac-Nor or L&W and I think all of them have been on short action blueprinted Remingtons in 308 Win. I also think that they where used a lot in Europe on military and police snipers in CHF form. That is all from memory though. I think the bigest problem was not invented here and the fact that most barrel makers where fudd's in the USA using WWI and WWII Pratt & Whittney war surplus rifling machines forever. People trying to make the most accurate and consistent barrels do not have time to be innovative and do deep R&D in a lot of cases. If people wont pay for it why bother? So it comes down to finding companies that have high standard actualy making the product it is hard to tell when something is rare and not common.
You might as well ask who makes the best barrel and wait for everybarrel maker in the world to claim they all make the finest barrel. Asking about 5R is more of the same most of it is just opinions not science. Recently Jeff Siewert mentioned some research that actualy found that 5R rifling deforms the bullet less. I think it was him. He is the only person though I have listened to or read that actualy can back up his opinions with actual research and engineering!
For the record it took many decades for 5R to catch on and when it finaly did catch on it was a blazzing dumpster fire because everyone clammered on to it like it was a Messiah in a bottle and marketing went buzz word crazy with it. Even my $169 Thompson Compass had 5R all over the barrel and the box and all adds in magazines.
No one can truly make an intelligent fact based case for or against it when talking about the bore sizes we use in hunting and competition for rifles and pistols.
I think that Whitworth proved how fantastic a polygonal bore could be just as Ballard proved that microgrove is garbage!
I think that polygonal barrel technology is as relavant as 5R type but the average person has not glomed onto it like they did 5R and 6.5CM that technology came and went with fudd's poo-pooing it because the backwards thinking premium barrel makers in the USA did not embrace it in mass. Just like all forms of rifling it can be made with a button, broach, single cutter, CHF etc.... Pac-Nor made one but then they dissappeard for what seemed like a decade when their shop burnt down. Lothar Walther makes one that I think is CHF. I am not shure who else made one.
They are not all the same and my experince is that they shoot great with a huge selection of weights and designs of bullets but they usually will not shoot as accurate as the best button rifled barrel or cutrifled barrel of conventional design. They will usually shoot longer between cleaning and are easier to clean. They normaly shoot faster than conventional rifling designs. I do not think anyone has set a record with one yet in modern times. A lot of tactical type shooters have tried them and liked them and find them perfectly acceptable.
So almost all of the ones I am aware of have come from either Pac-Nor or L&W and I think all of them have been on short action blueprinted Remingtons in 308 Win. I also think that they where used a lot in Europe on military and police snipers in CHF form. That is all from memory though. I think the bigest problem was not invented here and the fact that most barrel makers where fudd's in the USA using WWI and WWII Pratt & Whittney war surplus rifling machines forever. People trying to make the most accurate and consistent barrels do not have time to be innovative and do deep R&D in a lot of cases. If people wont pay for it why bother? So it comes down to finding companies that have high standard actualy making the product it is hard to tell when something is rare and not common.
You might as well ask who makes the best barrel and wait for everybarrel maker in the world to claim they all make the finest barrel. Asking about 5R is more of the same most of it is just opinions not science. Recently Jeff Siewert mentioned some research that actualy found that 5R rifling deforms the bullet less. I think it was him. He is the only person though I have listened to or read that actualy can back up his opinions with actual research and engineering!
For the record it took many decades for 5R to catch on and when it finaly did catch on it was a blazzing dumpster fire because everyone clammered on to it like it was a Messiah in a bottle and marketing went buzz word crazy with it. Even my $169 Thompson Compass had 5R all over the barrel and the box and all adds in magazines.
