Not that I am aware of except teh custom shop options like Joe mentioned. To be honest, I would highly recommend having one built. For the same price or less then Rem would build you one, you could get one custom built that would print in the .2" at 100 yards.
The last several 6mm-284s I have built were all sub 1/4 moa rifles at 100 yards with velocity in the 4400 fps range with the 55 gr bullets, +4000 fps with the 70 gr pills and +3500 fps with the 105 gr VLDs.
Spend your money wisely and get a custom rifle
built in this caliber. Despite what has been said about it lately, its still the current 6mm king when you combine quality componants and performance and accuracy.
Shawn, Chris or myself could build you a rifle that would really impress you and the vermin if you know what I mean!!! Any top smith can do this for you and get you better results then a custom shop Rem 700.