Thread: hornady's new CX bullet

Base of the neck isn’t much of a test or merit to the bullet just shows good shot placement on your behalf

i did get the time to shot a set of different powders varget, rl15,imr4451, a2520, big game ,a4064,imr8208 and staball6.5 . some of the loading were max loads with a 2.755 COL its a rather long bullet for the 708 brass. staball6.5 and imr4451 takeup to much space to get a decent amount of powder into the brass. varget and imr8208 did get a well above 2900 fps 139gr .22'' barrel varget did give a less that 3/4 '' grouping

Originally Posted by 300CALMAN

Faaaaaaaaaaaaaaaa that's some serious timber.

Shoot better than that everyday in the Ruahines…….👍

Originally Posted by misser

i did get the time to shot a set of different powders varget, rl15,imr4451, a2520, big game ,a4064,imr8208 and staball6.5 . some of the loading were max loads with a 2.755 COL its a rather long bullet for the 708 brass. staball6.5 and imr4451 takeup to much space to get a decent amount of powder into the brass. varget and imr8208 did get a well above 2900 fps 139gr .22'' barrel varget did give a less that 3/4 '' grouping

Thats pretty good speed for a copper bullet in a 7mm08.

the better grouping i found was a 5/8'' with a slightly reduced powder charge and a lesser COL . the plan now is to load up some more and then adjust the EC tuner

Originally Posted by 300_BLK

It’s just the GMX with the “heat shield tip” or a higher temp resistance polymer.

No, I wouldn’t agree with that.

From the testing done by fellas in the US, the GMX and CX are performing very differently. The CX looks like it is considerably softer than the GMX and will break up almost like a segmented copper bullet if impact velocity is high. The lower velocity expansion is remarkable.

From what I’ve seen so far I would say that the copper alloy metallurgy of the CX is completely different to the GMX.

The view on the GMX has historically been that it is too hard and double lung shots can frequently have bad outcomes. I don’t think we will be hearing that about the CX so much…



Whilst I hear what the guys are saying about potentially driving this bullet too fast, the problem is a good one to have because here we seem to have a copper monolithic bullet that does not need to be driven at warp speed to deliver clean killing.

And here’s the GMX: