If you are comparing the performance of the 6.5CM to the .270 over normal hunting ranges , here are a few points to factor into your calculations:
1. Use a well-constructed hunting bullet that you can shoot through the shoulder of a deer without it blowing up before getting to the vitals, perhaps compare the 140 grain Accubond or TGK in .270 to a similar CM bullet
2. Use a muzzle velocity that a temperature stable powder gives you such as H4350 or H4831sc that will work well at -4 degrees to 100 degrees without significantly affecting your velocity , pressure and point of impact
3. Use the same length barrel 22" to 24"
4. Do not use a 200 yd zero. Sight your .270 in for 3" high at 100 yds and the CM for the same.
5. Use your accurate load of temperature stable powder which gives a moderate pressure, not the exaggerated published loads of factory loaded ammunition, nor maximum load
6. factor in that the .270 has 10 % more cross-sectional area than the 6.5 for a bigger wound channel
7. Give drop figures at 100 (+3"), 200, 300 , 350 yds
8. State what loads, projectile, barrel length you are using
Since you have all the answers, why not just present the data instead of asking Jordan to do the work?
