I've been using 135 gr. Match Kings in my .270 this year for marmots. My shooting has all been over 12,000' elevation. I shot 7 'hogs this year at ranges from 600 to 749 yards. Next year I expect little trouble breaking the 800 yard mark. I'm not sure how far I can push this, but I'll keep trying to extend my range until shots become more a matter of luck that skill. I was out the other day and fired a couple groups using 130 gr. TSX's getting ready for elk next week. These are shooting nice little .5" three shot groups at 100 yds off the bench. I love getting this kind of accuracy from an 8 lb. hunting rifle. The BC of the MK's is published at .488, the TSX at .431. I used to shoot a .243 pushing 58 gr. v'max's at 3700 fps, but they were easily blown around in a breeze, and past 500 yard they were getting tough to hit with reliably. No such problem this year with the 27.
