Re: 260AI or 308 Win
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: jeffbird</div><div class="ubbcode-body">Just adding something for consideration from German Salazar's blog, which is similar to Lowlight's observations:
http://riflemansjournal.blogspot.com/2011/04/cartridges-sibling-rivalry-308-vs-30-06.html
Mid-Range Comparison
In NRA Mid-Range matches (500 and 600 yards), the average score and percentage of possible score for each cartridge was as follows:
.308 - 597-36X (99.5%) 960 rounds fired
6XC - 596-35X (99.3%) 1260 rounds fired
.30-06 - 595-31X (99.2%) 2580 rounds fired
Interestingly, the high X count (44X) was reached with all three cartridges. During the time period under review, I shot three scores of 600 with the .308, one 600 with the 6XC and none with the .30-06. Over the years I've shot 23 scores of 600, but only one was with a .30-06 and that was about 15 years ago.
If we look at the score averages, the .308 comes out on top at the Mid-Range distances. The average for the .308 is composed of a smaller number of scores because I tend to shoot the .30-06 more often, but I think it's a large enough sample to be reasonably accurate so the Mid-Range win goes to the .308 by 0.3% of the possible score. By the way, notice the the 6XC, as good as it is, simply straddles the .30 caliber cartridges, it is not the winner - that may surprise some people. When you factor in the shorter barrel life of a 6XC compared to the .30's, that becomes something to really consider when selecting a cartridge for Mid-Range matches.
At long range, 1000 yards, he had different results as would be expected:
6XC - 98.9%, 360 rounds fired
.30-06 - 97.7%, 460 rounds fired
.308 - 97.3%, 490 rounds fired
Importantly, his skill level is exceedingly high with all three, again confirming Lowlight and other's point that practice and skill will be more important than the differences in the rounds for most people.
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Wow, great post and link! Thanks!