What is MTU contour?
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What is MTU contour?
MTU / M24 Contours are a specific , fixed Varmint profile with a specific muzzle diameter at 26” if ordered shorter than 26″, the crown diameter increases accordingly. Some actions do not have MTU or M24 options available, a 900 varmint would be a very similar contour to an M24. A Shank diameter.
What is a number 3 contour barrel?
Just about all barrel makers turn out six contours, or profiles, ranging from #1, which is light sporter, to #6, which is heavy bull. Number 2 and 3 are magnum, number 4 is varmint (a heavy tube, but with some taper), and numbers 5 and 6 are bull barrels with little or no taper.
Where are Krieger barrels made?
John krieger was the first to perfect competition quality cut rifle barrels. Every Krieger Barrel is single-point cut-rifled and hand lapped in Richfield, WI.
What does barrel contour mean?
But with rifles, for which the barrel is often the largest and heaviest component, the overall shape of the barrel can take many different forms. This is generally referred to as barrel contours or profiles. As a baseline, consider a barrel with no exterior material removed, known as a bull barrel.
What is 5R rifling?
Definitions. 5R is a 5-groove rifling pattern with sloped or angled sides to the lands. All rifling has a certain amount of angle to the sides of the lands as a natural effect of the rifling process. The sides of the grooves are parallel, but the sides of the lands are not and the 5R carries this to an extreme.
Which type of rifling is best?
Button rifling is well suited to mass-production methods with high output. Button rifling leaves a smooth, bright finish inside the barrel that need not be lapped. Button-rifled barrels are very accurate. Bore and groove dimensions are very consistent.
What is gain twist rifling?
“Gain-twist” refers to a form of barrel rifling where the twist rate gets tighter over the length of the barrel. For example, a gain twist barrel might start with 1:12″ twist and finish with 1:8″ twist.
