There are only a couple of low BC match bullets available in 0.277. The 135 SMK mentioned only has a BC of 0.488, compared to the 175gn 0.30 SMK at 0.508. There's a reason you don't see 270 at LR matches.
By contrast, there is a huge selection of 30 cal, 6.5 and 6mm match grade, high BC bullets. The 260 remiongton or 6.5x55 will do everything the 270 will do at long range, and do it better with equal or less recoil.