Thread: Attempting a new .224 wildcat

Originally Posted by kiwi-adam

@Wingman, I had wondered, but hadn't been able to find much information about either 6.5mmBR or the 6.5mm Dasher.

My Grendel is using a 22in Barrel, and following the whole minimum 1,000ft-lb energy at impact, using the 123gr at 2500fps is usable out to about 340m.
I tend to use my Grendel often out to about 250m.

If I shorten the Grendel, I loose velocity, and energy, and therefore usable range.
If we assume a loss of 30fps per inch, I should be able to shorten to;
18in and still have 1,000ft-lb out to about 270m.
16in and still have 1,000ft-lb out to about 240m.

Is there much to be gained in either the 6.5mmBR or 6.5mm Dasher in a Short Barrel Hunting Application ?
Does the slight increase in case capacity result in much better velocities ?

Look up the 6.5 Timberwolf as it's also known. Ihave not done any testing with it so can't help re velocities in short barrels sorry
The bigger case won't always yeald more speed as you will have to go to a slower powder than the grendel like 2208 which will require a longer barrel to get full burn