Can somebody explain to me what a "5R" Barrell is. I'm new to the precision long range thing and I keep seeing it pop up in duscussions.
5R barrell
- Thread starter jason8251
- Start date
Re: 5R barrell
Where the lands meet the groves, it is angled instead of a 90 degree and there are 5 lands.
Where the lands meet the groves, it is angled instead of a 90 degree and there are 5 lands.
Re: 5R barrell
What does it mean when a barrel is said to be a "5R"?
5R is the form of rifling I developed for use in most target barrels and in many sporting barrels.
These barrels have 5 grooves, and the lands have angular sides. I have observed that bullet jackets
will deform such that they remain closer to the R-form lands than they will to the sharp-edged
lands present in conventional-style rifling. This reduces powder fouling at the corners of the
grooves. The angled form of the lands also helps to reduce jacket failures in quick-twist barrels.
from:
http://www.obermeyerbarrels.com/faq.html
What does it mean when a barrel is said to be a "5R"?
5R is the form of rifling I developed for use in most target barrels and in many sporting barrels.
These barrels have 5 grooves, and the lands have angular sides. I have observed that bullet jackets
will deform such that they remain closer to the R-form lands than they will to the sharp-edged
lands present in conventional-style rifling. This reduces powder fouling at the corners of the
grooves. The angled form of the lands also helps to reduce jacket failures in quick-twist barrels.
from:
http://www.obermeyerbarrels.com/faq.html
Similar threads
