Texas Hunting Forum

7mm-08 or 6.5 CM?

Posted By: QuitShootinYoungBucks

7mm-08 or 6.5 CM? - 12/09/14 09:14 PM

I know this will likely get some people going, but I'm thinking of adding another rifle to the fold in one of those two calibers. On Hornady's chart, to 500yds it's a dead heat and I doubt that other than steel I'd ever shoot one further. From what I can tell most of the positives weigh in on the side of the -08. What do you guys think?
Posted By: SingleShot85

Re: 7mm-08 or 6.5 CM? - 12/09/14 09:24 PM

Since I'm have a 7mm-08 built as we speak, I'll give it the nod

I'll be running a 168 berger classic hunter, the 140gr Amax 6.5 cant hang as far as energy goes and wind drift is the same BUT the 6.5 will be a little flatter out to a grand
Posted By: ChadTRG42

Re: 7mm-08 or 6.5 CM? - 12/09/14 09:25 PM

The 6.5 will be a little flatter shooting since you are pushing a 140 about 2800 fps. The 7mm-08 will run a 162 A-max about 2700 fps, maybe 2750. The 7mm will be able to run higher BC bullets a little slower, so it will retain better energy at longer distances. If you are only shooting steel, I'd go 6.5CM. If you plan to hunt, I'd go 7mm-08 with a 162 A-max or 168 VLD, since it will hit harder. I've taken the 7mm-08 with 162 A-max to a mile (1780 yards, actually).
Posted By: Threelranch

Re: 7mm-08 or 6.5 CM? - 12/09/14 09:33 PM

I was going though the same thing and picked me upa .270 wsm today , yo might look at the data on it . The thing that made my mind up was ammo avabilty where i am at and just the fact of how flat it shoots but i am sure there will be some that say its not a very good round .
Posted By: Bullfrog

Re: 7mm-08 or 6.5 CM? - 12/09/14 09:34 PM

Originally Posted By: ChadTRG42
The 6.5 will be a little flatter shooting since you are pushing a 140 about 2800 fps. The 7mm-08 will run a 162 A-max about 2700 fps, maybe 2750. The 7mm will be able to run higher BC bullets a little slower, so it will retain better energy at longer distances. If you are only shooting steel, I'd go 6.5CM. If you plan to hunt, I'd go 7mm-08 with a 162 A-max or 168 VLD, since it will hit harder. I've taken the 7mm-08 with 162 A-max to a mile (1780 yards, actually).


Good GAWD Man!
Posted By: slayer12

Re: 7mm-08 or 6.5 CM? - 12/09/14 10:07 PM

Originally Posted By: ChadTRG42
The 6.5 will be a little flatter shooting since you are pushing a 140 about 2800 fps. The 7mm-08 will run a 162 A-max about 2700 fps, maybe 2750. The 7mm will be able to run higher BC bullets a little slower, so it will retain better energy at longer distances. If you are only shooting steel, I'd go 6.5CM. If you plan to hunt, I'd go 7mm-08 with a 162 A-max or 168 VLD, since it will hit harder. I've taken the 7mm-08 with 162 A-max to a mile (1780 yards, actually).


Would you not suggest the 6.5 on Whitetail over 500 yards?
Posted By: HorizonFirearms

Re: 7mm-08 or 6.5 CM? - 12/09/14 10:17 PM

Killed whitetail out to 731 with the 6.5, We have guided plenty of 625 yard mule deer with the 6.5 creed. It has plenty to get the job done.
Posted By: HorizonFirearms

Re: 7mm-08 or 6.5 CM? - 12/09/14 10:22 PM

https://www.youtube.com/watch?v=R1288pndp4o

Deer at 1.40 was at 342 yards dropped
Deer at 3,15 was at 525 yards dropped
Deer at 3.30 was at 731 went maybe 7 yards

all with 129 grain SST factory ammo
Posted By: ChadTRG42

Re: 7mm-08 or 6.5 CM? - 12/09/14 10:31 PM

Like Derrick shows, the 6.5 is plenty for deer. I wouldn't hesitate with good conditions taking a deer or pig at 600-700 yards, even with my 6.5x47, which is slower than a CM. If you want a little more bullet weight, the 7mm-08 would be good. It has a higher BC than the 6.5. But it's a toss up really for either. The 7mm08 will have more drop, but have more energy on target. But you are splitting hairs kind of. Go exotic, and get both- 7mm Creedmoor! Neck the 6.5 up to 7!
Posted By: SingleShot85

Re: 7mm-08 or 6.5 CM? - 12/09/14 10:37 PM

Derrick should have my stuff today smile.......

I ordered some Berger 168 on sunday Lapua has a 150gr that looks interesting, did I mention I hate waiting

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KT
Posted By: HorizonFirearms

Re: 7mm-08 or 6.5 CM? - 12/09/14 10:53 PM

Originally Posted By: ChadTRG42
Like Derrick shows, the 6.5 is plenty for deer. I wouldn't hesitate with good conditions taking a deer or pig at 600-700 yards, even with my 6.5x47, which is slower than a CM. If you want a little more bullet weight, the 7mm-08 would be good. It has a higher BC than the 6.5. But it's a toss up really for either. The 7mm08 will have more drop, but have more energy on target. But you are splitting hairs kind of. Go exotic, and get both- 7mm Creedmoor! Neck the 6.5 up to 7!


I have a 7 creed reamer already on order about 5 months ago
Posted By: ChadTRG42

Re: 7mm-08 or 6.5 CM? - 12/09/14 10:54 PM

What about a 7mm Nosler? 26 Nosler necked up to 7mm.
Posted By: Buzzsaw

Re: 7mm-08 or 6.5 CM? - 12/09/14 10:57 PM

Sweet videos, I will be contacting this ranch
Posted By: J.G.

Re: 7mm-08 or 6.5 CM? - 12/09/14 10:58 PM

7-08 = more energy delivery outside 500

6.5 Creedmoor = case geometry = very consistent shooter.

Both are great chamberings when a 140 gr. is put in the 6.5mm and a 162 or 168 gr is put in the 7mm. Pick one.
Posted By: HorizonFirearms

Re: 7mm-08 or 6.5 CM? - 12/09/14 10:59 PM

Originally Posted By: ChadTRG42
What about a 7mm Nosler? 26 Nosler necked up to 7mm.

PTG already has the reamer for that too. Not a whole lot different than a 7 ultra mag
Posted By: Deerhunter61

Re: 7mm-08 or 6.5 CM? - 12/09/14 11:06 PM

I've owned both and loaded for both and for me the 6.5 CM is the round. It is as people say inherently more accurate and it has been a lot easier to load for.
Posted By: Deerhunter61

Re: 7mm-08 or 6.5 CM? - 12/09/14 11:08 PM

7 CM? Really? Will you use a 7-08 case? Now that'd be something to look at!
Posted By: SingleShot85

Re: 7mm-08 or 6.5 CM? - 12/09/14 11:13 PM

Originally Posted By: Deerhunter61
7 CM? Really? Will you use a 7-08 case? Now that'd be something to look at!


moore likely to use a 6.5CM case and neck it up

the 7-08 case would need too much modification...
Posted By: slayer12

Re: 7mm-08 or 6.5 CM? - 12/10/14 01:16 AM

Derrick received my stuff today decided to go with the 6.5 can't wait to see it completed.
Posted By: HorizonFirearms

Re: 7mm-08 or 6.5 CM? - 12/10/14 02:45 AM

Originally Posted By: Deerhunter61
7 CM? Really? Will you use a 7-08 case? Now that'd be something to look at!

Just going to neck up the 6.5 We already made a dummy round to make the reamer
Posted By: charlesb

Re: 7mm-08 or 6.5 CM? - 12/10/14 02:55 AM

I'd pick the 6.5, but only because I've already had a 7mm-08.

Can't go wrong, either way.
Posted By: HorizonFirearms

Re: 7mm-08 or 6.5 CM? - 12/10/14 03:03 AM

Originally Posted By: SingleShot85
Derrick should have my stuff today smile.......

I ordered some Berger 168 on sunday Lapua has a 150gr that looks interesting, did I mention I hate waiting

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KT


Just got it... Was the action supposed to com in pink??? confused2 I am on it
Posted By: SingleShot85

Re: 7mm-08 or 6.5 CM? - 12/10/14 05:45 AM

Originally Posted By: HorizonFirearms


Just got it... Was the action supposed to com in pink??? confused2 I am on it


uh yeah, w/ poke-a-dots
Posted By: Bullfrog

Re: 7mm-08 or 6.5 CM? - 12/10/14 06:17 AM

No it's supposed to be a pink finished product with polka dots!
Posted By: dee

Re: 7mm-08 or 6.5 CM? - 12/10/14 12:40 PM

I run a 7mm (although an AI version) and I'm more than pleased. The 162gr Amax are great performers on steel and game.
Posted By: J.G.

Re: 7mm-08 or 6.5 CM? - 12/10/14 01:20 PM

You mean the unicorn bullet? bang Perfect bullet for the 7-08.

They become available again and I'm gonna upset my UPS man because the package will be heavy!
Posted By: dee

Re: 7mm-08 or 6.5 CM? - 12/10/14 01:59 PM

Originally Posted By: FiremanJG
You mean the unicorn bullet? bang Perfect bullet for the 7-08.

They become available again and I'm gonna upset my UPS man because the package will be heavy!




I've got a few boxes of the unicorns stashed away. I've also played with the 168gr MK in the middle to stretch the supply out a bit but they are down on bc a touch and velocity so there really wasn't much to keep me drawn. Now I'm stuck with 450 of them to use on something. I might try them in 7mm rem mag for kicks, heck it was the go to bullet for the secret service when they ran the 7mm.
Posted By: J.G.

Re: 7mm-08 or 6.5 CM? - 12/10/14 04:08 PM

Yeah the BC on 168 gr 7mm MK is disappointing.
Posted By: MDMORROW

Re: 7mm-08 or 6.5 CM? - 12/10/14 04:10 PM

Flip a coin. I have a 7-08 and have no complaints. It's a quarter inch gun.
Posted By: dee

Re: 7mm-08 or 6.5 CM? - 12/10/14 04:48 PM

Originally Posted By: FiremanJG
Yeah the BC on 168 gr 7mm MK is disappointing.


Real world is .565 which is a good bit higher than the advertised .4488 Sierra lists. A plus is that they are a tangent ogive and extremely easy to load with.
Posted By: DocHorton

Re: 7mm-08 or 6.5 CM? - 12/11/14 04:35 AM

Originally Posted By: HorizonFirearms
https://www.youtube.com/watch?v=R1288pndp4o

Deer at 1.40 was at 342 yards dropped
Deer at 3,15 was at 525 yards dropped
Deer at 3.30 was at 731 went maybe 7 yards

all with 129 grain SST factory ammo


Nice shooting. Curious, where did you hit the first two that dropped straight down? Looked like a high shoulder shot, but couldn't tell exactly.

I hate having to track deer and my buck fever always kicks in somethin' fierce. Would like to know best shot placement to hit them to get them to drop like that. I'm not a head or neck shooter so that would be out for me.

Thanks!
Posted By: HorizonFirearms

Re: 7mm-08 or 6.5 CM? - 12/11/14 02:00 PM

Thanks,
We hunt in South Texas a lot, we have a place around Freer. In that country If you can keep from tracking by any means we try and do it. If you shoot them In the upper 1/2 of the shoulder you can typically get them to drop because when you are hitting in that boney area you may not get a pass through but you are expelling all the energy in the animal. You see that done a lot on many of these long range shows, Brush Country monsters talks about it every other show seems like. Some times you may sacrifice a little meat but shoot one in the soft spot and even a few yard in thick brush is tuff.
Posted By: redchevy

Re: 7mm-08 or 6.5 CM? - 12/11/14 02:23 PM

Id bet it has more to do with proximity to the spine than dispatching energy.
Posted By: dee

Re: 7mm-08 or 6.5 CM? - 12/11/14 02:28 PM

Originally Posted By: redchevy
Id bet it has more to do with proximity to the spine than dispatching energy.


I agree it seems whether it is bullet or bone fragments but the spine usually looks nasty after a high shoulder shot.
Posted By: 6.5BR

Re: 7mm-08 or 6.5 CM? - 12/14/14 05:38 PM

How does the 7 Creedmoor differ from the 7mm IHMSA? 6.5 CM vs. 6.5 IMHMSA, and so on?
Posted By: 6.5x47Lapua

Re: 7mm-08 or 6.5 CM? - 12/14/14 05:56 PM

Just to make this conversation more interesting. Lapua announced last week that they are making 7-08 brass. Obviously, I'm a huge fan of lapua brass. Just curious if this will sway anyones view. Now if Lapua would only start producing 6.5 and 7mm saum brass!

http://bulletin.accurateshooter.com/2014/12/new-lapua-brass-for-2015-300-blk-7mm-08-8x57mm-js/
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