Hornady Copper alloy 90gr CX

[CZ527 Guy]

The 90 gr CX is either near un-obtainable or unavailable thus far. While I see you claim to have obtained a box of 50 of the 90 gr CX bullets & if you have actually sourced a box more power to you. I have been scrounging for the .243 diameter 90 grain CX bullet for 6 months or so now & you are the only one I know of who claims to have seen the .243 diameter CX bullets available.

Point here is if the 90 GR CX bullet is an option. If the 90 GR CX bullet shoots accurate in your rifle, then in the Hornady all copper alloy bullet line up the 90 GR CX may be the better choice over the 80 GR CX IMHO.

I do question the wisdom in pigeonholing your load to 2900 FPS. I may follow a path more along the lines of seeking the most accurate loadI could work up between 2900 FPS & 3050 FPS.

Make no mistake Id prefer the 90 gr CX at the increased distance. Still, Id expect the 80 grain CX bullet to be quite adaquit as well out to 300 yards. See the YouTube review by Frontline rejects on the 80 gr CX bullet. Trouble with making a judgment on the 90 gr CX bullet is their is little to nearly no real life experience with the 90 grain cx offerings due to the simple fact they are so new, that they really have not made it to market yet for one reason or another.

https://www.youtube.com/watch?v=10HpKGDnRVE

No factory 90 grain CX ammo or components are out there yet that utilize the 90 gr CX offering even in the 6mm creedmoor.

On paper 90 gr CX bullet looks to offer more down range performance provided the barrel to be used in, has enough twist to stabilize the longer bullet, over the 80 grain CX. Ballistic coefficency advantages of the longer bullet along with the increased weight suggest the 90 gr CX bullet will offer more terminal performance at the longer distances. Real world experience is too close to non existent at this point for most of us thus far.

I watched the video  looks good but I'm unsure when it comes to power down range 


Range
Velocity
Energy

0
3100fps
1707.0

100 yds
2750fps
1344.0

200yds
2427fps
1046.0

300yds
2126fps
803.0

This is what I got out to 300yds on Hornadys BC. 

I was told I needed 1000 ft-lbs for a clean kill on deer size game . Am I doing something wrong with the BC to get this or have I been told wrong on what I need for hunting.

I will take all the help I can get to get this right , I could probably use the existing 103ELD-X but This seems fun to play with if it gives me a good round that is not out there


Thanks

1000 ft lbs on target is a good guideline though not set in stone. To clarify 1000 ftlbs would offer more in the way of hydrostatic shock. When your hydrostatic shock is up there bullet placement can be a bit less critical often causing the legs to turn to jello on impact.
Fella I purchased a drop in barrel from for a CZ 527 chambered in 6.5 Grendel suggested high shoulder shots with that caliber with a properly constructed bullet. Last fall was the first time I intentionally selected a high shoulder shot (brachial plexus). Though this brachial plexus shot was  with the 6mm ARC.

https://www.youtube.com/watch?v=b_x9vR_0KM8

Three years prior while archery hunting, I had accidentally had what must have been a perfect Brachial plexus hit. (not at all recommended archery placement) Results was a downed deer on the spot with relatively little energy on impact. A very rare result with archery equipment. Brachial plexus shot is a central nervous system shot.

With a rifle the Brachial plexus shot can be extraordinarily effective. 1000 lbs energy on target can offer a bit more room for error. Ill argue that 700 ftlbs impact energy is more than enough with proper shot placement. The all copper bullet may be an ideal bullet for the brachial plexus shot due to the way this bullet holds together and penetrates even when impacting bone.

Young girl offers a couple of good examples here I am confident the first deer was well under 1000 ftlbs impact energy & resulted in a kill shot that allowed the deer to run 60 yards or so. very ethical in my book. 2nd deer was another central nervous system hit while I am not sure Id recommend the 2nd shot placement, hard to argue with the results.

https://www.youtube.com/watch?v=yNSJgAXlES4