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7mm-08 vs 6.5 non-mag SAs
#6497905
10/16/16 09:00 PM
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Joined: Sep 2013
Posts: 120
6.5BR
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Woodsman
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Woodsman
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What say you who've used both? Read a thread here on the 6's being light on steel, how do the 140-142 6.5's fare vs the similar BC in 7mm ?
I am guessing very similar, more recoil and barrel life in the 7mm. Any diff in how they do on steel?
I would expect both best the 308 when looking at wind and drop.
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: 6.5BR]
#6498750
10/17/16 01:06 PM
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Joined: Sep 2009
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ccoker
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: 6.5BR]
#6499515
10/17/16 09:18 PM
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Joined: Dec 2008
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J.G.
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Short action 7's hit even harder than the 6.5's when talking equal barrel length, and with both pushing a high BC bullet on a filled case.
Yes, both best the .308 in wind and drop. But anyone that shoots distance regularly doesn't really care about drop. If one drops more than the other, all ya gotta do is turn the elevation turret a little farther.
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: J.G.]
#6500107
10/18/16 03:14 AM
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Gone to Texas
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Any specific barrel length? I'm thinking about building a shorty 16" in either 7mm-08 or 6.5 Creedmoor. I currently shoot a 6.5 Creedmoor and love the round. It hits whitetails hard!
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: Gone to Texas]
#6500211
10/18/16 10:33 AM
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Joined: Dec 2008
Posts: 41,171
J.G.
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Up to you.
I will be building a light 16", suppressed 7mm-08 as a walking around gun.
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: 6.5BR]
#6500305
10/18/16 12:42 PM
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Joined: Sep 2009
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ccoker
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Been through this a bunch and will share my current plans and thoughts.
I have a 22" 6.5 for my long range gun and building a 17" (couldnt decide between 16 and 18 so I split the difference knowing full that it didn't really matter) Using the Savage lightweight hunter action and a custom McGowen barrel that is a sporter profile and flaring out at the end like an AR barrel for the threads.
It will be in a McMillan A3 sporter stock with the lightweight Edge fill.
Purely for a nice lightweight deer rifle. I have a 16" 6.8 and 18" 308 AR, both are lightweight Wilson Combats, so, I don't "need" it per se, but I just think it is about the ideal setup for deer hunting. Most of the shots where I hunt are within 300 yards, most blinds a 200 yard shot is at the limit. There are a few spots where 500 plus yard shots are a possibility and I would probably run the 6.5. Mainly because of the optics I will be running.
The 708 will probably run a 1.5-8x42 SB that does not have an elevation turret for dialing.
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: 6.5BR]
#6500345
10/18/16 01:09 PM
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Joined: Sep 2009
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ChadTRG42
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Generally, the heavier the bullet, the more energy on target at longer ranges. But BC becomes a big factor in there also. As you increase bullet weight, your hits and energy on target go up. A 7-08 pushing a heavy 160-175 grain bullet will easily have more energy than a smaller round fired out of a similar smaller case. The report on steel will be much easier to see as you get a heavier bullet.
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: J.G.]
#6500381
10/18/16 01:23 PM
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Joined: Jul 2013
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Gone to Texas
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Up to you.
I will be building a light 16", suppressed 7mm-08 as a walking around gun. What's the max range while hunting you could shoot the 16" 7mm-08? With the short barrel does it lose a lot of velocity?
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: Gone to Texas]
#6500399
10/18/16 01:29 PM
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Joined: Dec 2008
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J.G.
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Up to you.
I will be building a light 16", suppressed 7mm-08 as a walking around gun. What's the max range while hunting you could shoot the 16" 7mm-08? With the short barrel does it lose a lot of velocity? What are you hunting? I've ran that combo on steel out to 800 yards, I'd launch one at a coyote or hog, without a second thought. Whitetail? I'm comfortable with it to 500, which probably won't happen. I've yet to have to take a shot at a whitetail farther than 350.
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: J.G.]
#6500462
10/18/16 02:05 PM
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Gone to Texas
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Up to you.
I will be building a light 16", suppressed 7mm-08 as a walking around gun. What's the max range while hunting you could shoot the 16" 7mm-08? With the short barrel does it lose a lot of velocity? What are you hunting? I've ran that combo on steel out to 800 yards, I'd launch one at a coyote or hog, without a second thought. Whitetail? I'm comfortable with it to 500, which probably won't happen. I've yet to have to take a shot at a whitetail farther than 350. That's exactly the answer I was looking for, thanks! I love the idea of a 16" barrel for hunting but I was reading online that you lose so much velocity. I was worried about shooting deer 250-300 yards which on my lease is a fairly common shot.
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: 6.5BR]
#6500717
10/18/16 04:11 PM
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Joined: Sep 2013
Posts: 120
6.5BR
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Woodsman
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Woodsman
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For me, I am looking at a light palma or varmint contour at 20-21" - could do one like a 17 shorty but fear the blast w/o a can would be a bit much. This would be for mostly punching deer/hogs, paper and steel.
I have thought of going more a traditional sporter route if I want more of a carry rifle, and would do a 2B at about 22.5"
Assuming Lapua or WW brass, with good bullets and loads will shine in the 7/08, long ago had very good results .3-.4 MOA at 200 yds with RP brass partial sized in a 700V chopped to 21", VLS Stock floated, trigger turned down, no other work.
I do not expect a 7 to outshoot the 6.5, but run pretty close in accuracy, but perhaps do better in the wind and hit steel harder at LR. I am a 6 and 6.5 fan, but I have had a hankering for a custom 7/08 and an action designated for one in a 7mm SA. Not a big fan of long barrels, prefer the above set ups, short stout, or modest length with stiffness that is portable.
Anyone have some accuracy info using Bergers and similar good bullets in a custom 7/08? I would expect them to be a solid sub 1" at 200 rifle.
Timney as good as a Jewell for most purposes?
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: 6.5BR]
#6501192
10/18/16 09:04 PM
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Joined: Sep 2009
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ccoker
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: J.G.]
#6501259
10/18/16 09:34 PM
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Joined: Oct 2013
Posts: 3,416
ZK-315
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Up to you.
I will be building a light 16", suppressed 7mm-08 as a walking around gun. Are you planning berger 180s like your 7mag? Just recently I've been toying with the idea of a short 6.5 or 7/08, but leaning towards the 7/08 due to already loading 7wsm in the 180 bergers. I wasn't sure how 180s would run in a short barrel that's suppressed, if it makes any difference?
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: ZK-315]
#6501616
10/19/16 01:38 AM
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Joined: Dec 2008
Posts: 41,171
J.G.
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No, nothing heavier than 162 gr. When the barrel is shortened, a heavy high BC bullet can produce less energy than a lighter decent BC bullet, making more velocity.
Yeah, I'm the guy that's spent time plugging hypotheticals into the ballistic calculator and seeing what occurs down range.
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: J.G.]
#6501795
10/19/16 03:15 AM
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Gone to Texas
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No, nothing heavier than 162 gr. When the barrel is shortened, a heavy high BC bullet can produce less energy than a lighter decent BC bullet, making more velocity.
Yeah, I'm the guy that's spent time plugging hypotheticals into the ballistic calculator and seeing what occurs down range. I'm curious, why the 7mm-08 over the 6.5 Creedmoor in the 16" barrel?
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: 6.5BR]
#6501866
10/19/16 04:17 AM
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Joined: Sep 2009
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ccoker
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Slightly larger diameter means a bit more volume for the gas to ezpand.
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: Gone to Texas]
#6501958
10/19/16 11:22 AM
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J.G.
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No, nothing heavier than 162 gr. When the barrel is shortened, a heavy high BC bullet can produce less energy than a lighter decent BC bullet, making more velocity.
Yeah, I'm the guy that's spent time plugging hypotheticals into the ballistic calculator and seeing what occurs down range. I'm curious, why the 7mm-08 over the 6.5 Creedmoor in the 16" barrel? More foot pounds out of a short action, with a short barrel. But there would be nothing wrong with a 16" 6.5 Creedmoor.
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: J.G.]
#6502189
10/19/16 02:10 PM
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Joined: Oct 2013
Posts: 3,416
ZK-315
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No, nothing heavier than 162 gr. When the barrel is shortened, a heavy high BC bullet can produce less energy than a lighter decent BC bullet, making more velocity.
Yeah, I'm the guy that's spent time plugging hypotheticals into the ballistic calculator and seeing what occurs down range. That makes sense. I was just curious. Don't get me wrong, I love my 7wsm, but with a 24" barrel and a can on the end, it's pretty stinkin long to be maneuvering around the truck/mule or a couple of tighter stands I've been in.
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: 6.5BR]
#6502233
10/19/16 02:34 PM
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Joined: Sep 2009
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ccoker
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yep
I think a 708 is a very good balance out of a shorter barrel. Anxious to get mine together.
Last edited by ccoker; 10/19/16 02:35 PM.
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: 6.5BR]
#6502620
10/19/16 06:34 PM
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Joined: Aug 2010
Posts: 2,605
fouzman
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I have several custom 7mm-08s. Most have 26" barrels but one has a 20" bbl threaded for a suppressor. No velocity loss between the two barrel lengths and all of them shoot around .4-.5MOA at 200 with Berger hunting bullets, but I shoot 140s.
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: 6.5BR]
#6502627
10/19/16 06:41 PM
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Joined: Mar 2014
Posts: 978
el_cazador713
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fouzman- what kind of velocity are you seeing with the 140s out of the 20" barrel?
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: jeffbird]
#6502648
10/19/16 06:57 PM
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Joined: Dec 2008
Posts: 41,171
J.G.
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Read my words again, Jeff.
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: el_cazador713]
#6502662
10/19/16 07:08 PM
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fouzman
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fouzman- what kind of velocity are you seeing with the 140s out of the 20" barrel? 2880
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: J.G.]
#6502680
10/19/16 07:23 PM
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Joined: Mar 2009
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jeffbird
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Read my words again, Jeff. Duh! I really need to take a vacation. Just deleted it. Sounds like a nice setup.
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Re: 7mm-08 vs 6.5 non-mag SAs
[Re: jeffbird]
#6502723
10/19/16 07:55 PM
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Joined: Dec 2008
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J.G.
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Take a vacation to my place. Bring your buddies with you.
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