Hammers have better terminal characteristics than the Barnes and typically get you higher velocities. You may be able to go heavier depending on your twist rate, but speed is your friend here. As long as your impact velocity is 1,800 or greater, you'll be happy with the results of the Hammers. My 6.5x284 spinning 124 Hammers kills just as good as my 7LRM pushing 169 Hammers. If anything the little 124 gr pill does it better because they are faster. I never cease to be amazed at the potency of that little 124 HH.Recommended twist rate is 1-12" or faster Bullet length is 1.255" Bullet weight is 153 grains Recommended use: Big game hunting G7-BC=.208 estimatedhammerbullets.com
I'm supposing you reload?
OK, folks. Steve at Hammer Bullets has been getting requests for load data on Hammer Hunter bullets. There is an extensive spreadsheet for Absolute Hammer Load Data developed and shared by members on this Forum. Data for Hammer Hunters is on the Hammertime Forum, but it has not been placed...www.longrangehunting.com
The 6.5 CM will run a 124 HH around 3,000 fps (need 8 twist or faster), which will get you well past 500 yd for terminal effectiveness. The 308 pushing 152 gr Hammers (12 twist or faster) at 3,000 fps (if you can), will also get you to 500 yd, but the 6.5 Creed and the smaller bullet has the edge in terminal effectiveness due to sectional density and higher retained velocity at those ranges (higher BC). Either will get the job done from 0 - 500 yd. All you got to worry about is doing your part to get it where it belongs.
For factory loads, my recommendation would be to go with a Barnes load or the Federal Terminal Ascent or Trophy Bonded Tip, whichever it shoots the best.
I need to give those hammers a shot. Was really interested in the Cutting Edge Lasers too until I saw how fast a twist rate they require.