if you really want to shoot bug holes at long range get away from production bullets.
they all loose precision the further you shoot.
i would recommend a true custom bullet, with a berger as a first alternate.

Quote Originally Posted by Fuj' View Post
And why I developed the SA284. That shortened .284 has the same
overall length as the 7/08, and the ability to use 3 more grains of
powder. In my long throated test barrel. I'm currently working with the
183 pointed Sierras. With Ramshot Hunter, I'ts doing better then the
180 bergers. and I'm only using a 26 inch, 8.7 twister. Next barrel will
be a 29" (finished) and 8.5 twist. Plan is to hang out around the 2800
range and shoot bug holes at 300. Mid South shooters is shipping me
1000 of the Sierras, I like them that much with this wild cat. Maybe
prime time this coming season. 1000 yard Ridge was canceled this past
year because of Covid.

As for the 6.5 Creedmoor versus the .308 ?? Yeah there's no debate there.
Sure impressed our armed forces to proceed chambering the cartridge.
I no longer shoot one. I got bored with it.....