For years now, we have been limited 7 and 8 twist 223 barrels for shooting the 77smk at distance. This new 69 tmk has a higher bc than the 77smk, mag length loadings, shoots from a 9 twist, and roughly 300 fps faster. So what is not to like? This is literally having your cake and eating it too.
Mils of drop will be somewhere around 2.7 at 500 compared to 3.4 of the 77smk.
A constant 10mph 90 degree wind at 500 will be somewhere around 1.2 mils. The 77 would be at 1.3.
My hope is that the 69tmk is accurate and easily tunable. If it is, I have no reason to shoot the 77cc or smk anymore.
I also hope this TMK release will get other manufacturers to step up there game. Competition always breeds better products for consumers like us.