What are you using for a g7 bc with them? I've been torn between these and the 110 sierras. I have both so will test both. Seems alot of reports on the 109s is about a .303 g7I've used the 109 HTBT for over a year now in a 6 creed. I've found they shot well close to the lands, .020" off, but I soon pushed them deeper and deeper and ended up using them @ .070" off the lands FWTW. You may find they work better at a different OAL.
Mark Gordon at SAC did a test with a few of his friends testing the theory of a bullet jump node and found some bullets like the Hornady ELD-M and the Berger 105 HYBT liked a lot of jump i.e. .060"- .095". His testing was done at 600 yards and was over a bunch of different rifle he built and his results seemed to follow through with his buddies results too.
Same for the DTAC in the 6 creed only not as deep, I ran them at .040" off the year before.