Posted by MarkB_MI on December 12, 2010 at 08:03:39 from (32.178.78.103):
In Reply to: OT: GUN AMMO posted by JR.FRYE on December 12, 2010 at 07:02:37:
Effective for what? Targets? Big game? Woodchucks?
6.5mm bullets typically have very high ballistic coefficients. In fact, various 6.5 mm cartridges are commonly used in 1000 yard matches. But it looks like the Norma ammo is loaded with a round nose bullet with a so-so BC of .326. The muzzle velocity is a mediocre 2300 fps. So it's going to be inferior to, say, the .260 Remington which pushes a 140 grain, .526 BC bullet to 2700 fps. Still, according to Norma, it retains almost 1000 ft-lbs of energy at 300 yards, which ain't too shabby. By comparison, a 180 grain .30-06 will have about 1500 ft-lbs of energy at 300 yards.
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