View Single Post
Old March 30, 2013, 05:11 PM   #62
Join Date: March 4, 2005
Location: Ohio
Posts: 13,717
You're welcome. I wanted to bring that to your attention because there are some higher BC's available in some 7 mm bullets. Also, a lot of 6.5 mm bullets have high BC's, which is why the 6.5-284 Norma became a darling of the F-Class 1000 yard shooters. They can scoot a 142 grain Matchking out fast enough to match the magnum .30's with much heavier bullets without incurring more recoil than a .308. Sometimes they are referred to as "laser-like", but be aware the penalty for pushing larger quantities of slower powder down a narrower bore is about half the peak accuracy bore life of a .308.

Use the ballistics calculators at the free on line JBM Ballistics site already linked to. At the bottom of the page is a stability calculator if you are unsure about the combination of a particular bullet with a particular barrels rifling pitch.
Gunsite Orange Hat Family Member
CMP Certified GSM Master Instructor
NRA Certified Rifle Instructor
NRA Benefactor Member
Unclenick is online now  
Page generated in 0.03822 seconds with 7 queries