I haven't been on in awhile so I apologize if this is old news:

Krieger now in 5R

I've seen this on thier website. Can anyone tell me the technical differances between 5R and thier standard cut rifling?

quote:

Originally posted by guncurtis2:
I've seen this on thier website. Can anyone tell me the technical differances between 5R and thier standard cut rifling?

From Krieger's website:

The Obermeyer 5-R™ style rifling is simply a different style of rifling that has a 'ramped' or angled transition from the groove to the land and back down from the land to the next groove. Our conventional 4 groove rifling has a nearly straight side to the land. The internet is full of information describing perceived benifits to the 5-R™ rifling over conventional styles, but most of this is comparing "apples to oranges" as they are usually comparing one manufacturers "non 5-R™" to a different manufacturers "5-R™" barrels. We have honestly seen no significant diferences between the two styles of rifling when comparing our barrels. We may have better information after this shooting season is over, and once we start getting feedback from competitive shooters trying it though.


We do not expect any accuracy, barrel life, velocity, or other performance differences from our 5-R™ rifling than we do from our conventional 4 groove barrels.

Thanks Frank

"Canted land" rifling is certainly not a new concept. Schneider "gas seal", Shilen "ratchet",and other maker's 5R and 5C have been around for years.

I have an Obermeyer on a 308 I built and it has the 5R rifling. I do not know if it is coincidence or not but that barrel cleaned much easier than any other I've got.