I bit the bullet and bought a 1/8 Tikka T3X Super Varmint. If you not going full custom, this is the next best thing. It shoots single feed 88ELD's lights out. The damn gun performs like my 6.5cm, its crazy. It has shot a variety of rounds very well and velocity has been better than my 20 inch 5R , which it should with longer barrel. But I heard low velocities in other guns so I was worried.
We can nail the 1,300 yrd target with relative ease and have mortar'd in the mile hits.
PB