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Old July 8, 2011, 05:15 PM   #19
taylorce1
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Join Date: November 18, 2005
Location: On the Santa Fe Trail
Posts: 8,245
Quote:
Am I off base on that fellas? Please educate me if I am.
You are a little off base, it is all about preference pretty much. First off you have to take two similar bullets to compare so let us look at the Nosler Partitions. The .277 150 grain bullet and .308 180 grain bullet have similar BC and SD. Going to Federal's web site you can compare ballistics of the loaded ammunition.

.270 Win 150 grain Nosler Partition
MV: 2830 fps
ME: 2667 ft-lbs
Velocity @ 500 yards: 1928 fps
Energy @ 500 yards: 1238 ft-lbs
Wind drift @ 500 yards: 19.7"
200 yard zero drop @ 500 yards: -44.1"

.30-06 Spring 180 grain Nosler Partition
MV: 2700 fps
ME: 1913 ft-lbs
Velocity @ 500 yards: 1873 fps
Energy @ 500 yards: 1348 ft-lbs
Wind drift @ 500 yards: 20.7"
200 yard zero drop @ 500 yards: -48.7"

So out at 500 yards the only thing the .30-06 wins with is a larger diameter bullet and 110 ft-lbs of energy. The .270 Win will get there with a little less compensation for distance and wind. So it is a trade off between what you want. 130 grain Partition bullets get you there with less windage and elevation correction yet and only give up 170 ft-lbs of energy to the .30-06.

.270 Win 130 grain Nosler Partition
MV: 3060 fps
ME: 2703 ft-lbs
Velocity @ 500 yards: 2012 fps
Energy @ 500 yards: 1168 ft-lbs
Wind drift @ 500 yards: 20.2"
200 yard zero drop @ 500 yards: -38.8"

Quote:
You know something about guns. Just check the ballistic charts. The .270 is a round that doesn't even need to exist. The 30-06 will do more and better than the .270 and hit it's mark with more energy at long ranges.
So on paper I'm waiting to see what the .30-06 does better, I'll give you energy but only slightly better than what the .270 delivers. The .270 has nearly the same energy as the .30-06 but does it with less felt recoil. I personally know it works well on elk, deer, pronghorn, pigs, coyotes, and prairie dogs, the 06 I've only taken elk and bear with. Plus comments like this one usually come from people who haven't used or used very little the .270 Win. Besides if it didn't need to exist you could say that about any other cartridge that has been released in the last 100+ years.

Quote:
If you have an action from a 270, build a 6.5-06.
6.5-284 works better with the 6.5 bullets and you can buy properly head stamped brass. With the long action you can use the longest 6.5 bullets in the magazine without fear of eating powder capacity.
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Last edited by taylorce1; July 8, 2011 at 09:10 PM. Reason: spelling
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