The Firing Line Forums

Go Back   The Firing Line Forums > The Hide > The Art of the Rifle: General

Closed Thread
 
Thread Tools
Old December 2, 2008, 09:11 PM   #1
Ace12
Member
 
Join Date: January 27, 2006
Posts: 63
7mm-08 vs .243

Would you guys consider the 7mm-08 to be a good varmint gun for coyote? Also for just fun target shooting. I have compared it to the .243 and the 7mm-08 has better ballistics hands down. Only drawback I can see is a slight gain in recoil, but that isn't a factor to me. I figured barrel life will be alot better with the 7mm-08 also. I have heard the .243 is known for shorter than normal barrel life.

Last edited by Ace12; December 2, 2008 at 09:56 PM.
Ace12 is offline  
Old December 2, 2008, 10:40 PM   #2
tag2501
Member
 
Join Date: November 6, 2008
Posts: 18
The 243 would be the Coyote choice. it's the same case as the 308 and 7mm08 with a lighter, higher ballistic coefficient bullet. I've seen factory ammo spec'd at almost 4000fps in a 243 with a lighter bullet. the 243 is also a lighter recoil.
tag2501 is offline  
Old December 2, 2008, 10:45 PM   #3
fisherman66
Senior Member
 
Join Date: August 22, 2005
Location: Rhome, TX
Posts: 4,641
Quote:
I have compared it to the .243 and the 7mm-08 has better ballistics hands down.


You could split the difference with the 260.
__________________
la plus belle des ruses du diable est de vous persuader qu'il n'existe pas!
fisherman66 is offline  
Old December 2, 2008, 10:47 PM   #4
sjeeperman
Junior Member
 
Join Date: May 25, 2008
Location: Louisville Ky
Posts: 9
The only downside that I know of is the cost of the ammo. The 7mm-08 is a bit more money. I shoot both.
__________________
Got to love the smell of gunpowder in the morning.
sjeeperman is offline  
Old December 2, 2008, 10:49 PM   #5
Ace12
Member
 
Join Date: January 27, 2006
Posts: 63
Factory ammo selection is better with the 7mm-08 than the 260. With a lot of shooting wont the .243 eat up barrels much faster than the 7-08?
Ace12 is offline  
Old December 2, 2008, 10:51 PM   #6
fisherman66
Senior Member
 
Join Date: August 22, 2005
Location: Rhome, TX
Posts: 4,641
Quote:
With a lot of shooting wont the .243 eat up barrels much faster than the 7-08?
That's extremely unlikely.

When you mention ballistics, are you referring to trajectory or retained energy?
__________________
la plus belle des ruses du diable est de vous persuader qu'il n'existe pas!
fisherman66 is offline  
Old December 2, 2008, 11:49 PM   #7
DoctorXring
Senior Member
 
Join Date: April 30, 2002
Location: The Republic of Texas
Posts: 389
.

A 7mm-08 will shoot no flatter than a 243 Winchester.

It will strike with more impact however.

The coyote will never know as both are "overkill" for
an animal of this size.

I shoot a 243 with the 105 Amax at 3000 fps. The Amax
has a 0.500 Ballistic Coefficient. This is a very flat shooting
and wind bucking round.

You can get some 140 grain 7mm's that are close to that
in BC and you can drive them around 2900 in a 7mm-08.

So at three or four hundred yards you are only talking maybe
an inch at most in difference in drop and wind drift. Most
people cannot hold an inch at 400 yards, so it's of no significance.

I think the 243 is a better choice for a varmint rifle. A 7mm-08
is a better choice for a deer rifle. Both will cross over with
the right bullets and do both jobs. A 243 will be a little cheaper
to shoot. A little sweeter to shoot.

As far as a target round... ask G. David Tubb. He's been using
a round very similar to a 243 Winchester at 600 yards called
the 6XC. He's not a compromising type of guy.

See here --

http://www.6mmbr.com/6XC.html

dxr


,

Last edited by DoctorXring; December 2, 2008 at 11:58 PM.
DoctorXring is offline  
Old December 3, 2008, 01:07 AM   #8
globemaster3
Senior Member
 
Join Date: January 28, 2006
Posts: 1,203
Although both rounds are nice and you probably couldn't go wrong with either, what is your ammo availability where you are at? The reason why I ask is that .243 is a pretty common round to find in a lot of places and the 7mm-08, for all its merits, can be a little more scarce.

If you reload, this obviously is not as big of an issue. If you can/don't mind ordering ammo online, that's another factor.
globemaster3 is offline  
Old December 3, 2008, 07:05 AM   #9
Ace12
Member
 
Join Date: January 27, 2006
Posts: 63
The ballistics chart I was reading was from Federal website. It showed the 7mm-08 had better long range velocity, energy, less wind drift, and real close on bullet drop. I have seen ammo available locally for both. I guess my main concern with the .243 was the barrel. The faster smaller rounds tend to wear out a barrel alot faster than the slower rounds. Other than that the .243 is a fine choice.

I dont know who makes the Amax, but according to Nosler website, the .243 bullets have alot lower BC than the 7mm-08.

Last edited by Ace12; December 3, 2008 at 07:10 AM.
Ace12 is offline  
Old December 3, 2008, 07:44 AM   #10
Omaha-BeenGlockin
Senior Member
 
Join Date: December 13, 2001
Location: U.S.S.A.
Posts: 938
I just never had good luck with the 7mm-08---owned a couple rifles and neither were all that accurate.

The .243 is whole nother story---very accurate.

Neither of them is very fur friendly---the .243 with light bullets would be better. If you're looking to save the pelts---the smaller the better---if not, any old cartridge will work.

The 7mm-08 is more of a strictly deer round----the .243 is a fairly good combo deer/varmint round.
__________________
I take the leech that's bleeding me
Can't stop to save my soul
I take the leash that's leading me
-------Metallica
Omaha-BeenGlockin is offline  
Old December 3, 2008, 08:37 AM   #11
Brad Clodfelter
Registration in progress
 
Join Date: January 26, 2007
Posts: 925
I'd just split the difference and opt for a 25-06. You will sort of be in between. It's the ultimate coyote cartridge. You can shoot 90gr bullets that will shoot flat as most any cartridge out there. And you can still use 117 or 120gr bullets for deer that will take deer out to 400yds quite easily if you need to. That's providing if you can judge the distance and know how to put the bullet where it needs to go.
Brad Clodfelter is offline  
Old December 3, 2008, 08:52 AM   #12
dalegribble
Senior Member
 
Join Date: August 4, 2007
Posts: 861
i have a 308, 7mm/08 and 243. the 243 is just a joy to shoot and you could shoot it all day long and still be smiling. i love the 7mm/08, it is more versitile and can be used on anything up to elk but it does have more recoil than the 243. accuracy has always been great in all 3 calibers. if you're going to be shooting alot at one time i think the 243 lack of recoil would keep you shooting better longer and the ammo is pretty cheap.
__________________
Waltzes with woofs
dalegribble is offline  
Old December 3, 2008, 08:55 AM   #13
j.chappell
Senior Member
 
Join Date: October 14, 2008
Posts: 1,125
I believe the topic of short barrel life in 243's was discussed in great length in a thread I started about using it for long range.

Anytime you are pushing light for caliber bullets in any barrel you are going to cause more damage to your throat then when pushing heavier bullets at slower velocities.

If you are looking to the 243 and 7-08 why would you want to use a lighter bullet anyway? I love the the 243 and do not shoot anything lighter than 88gr. You do away with the ballistic advantages when you go to a larger caliber and then shoot the same bullet weight as you did in a smaller caliber.

It never fails to amaze me when a guy buys a 243 and then loads a 55gr. Nosler just like he did in his 22-250. If you want to shoot 55's stay with the 22 centerfires. If you want to take advantage of better ballistics of the 6mm's, 6.5mm's, and 7mm's then step up to a bullet that does just that and leave those tiny little pills where they belong as they are inferior to the heavier bullets in retained velocity, energy, and trajectory at long range.

Me, I'd go with the 243, I just feel it is a better cartridge for what you intend to do with it.

J.
j.chappell is offline  
Old December 3, 2008, 10:19 AM   #14
sureshots
Senior Member
 
Join Date: March 17, 2008
Location: Piedmont,NC
Posts: 464
unfair comparison

J. .chappell, You hit the nail on the head. You can't move up caliber wise and then compare the same weight bullets. A fair comparison to the 243 would maybe be the 6mm. not the 25-06,7mm/08,308(ect) you should be comparing the 7mm/08 to the 270, 25-06 or perhaps even the 30-06.
sureshots is offline  
Old December 3, 2008, 10:47 AM   #15
ryalred
Senior Member
 
Join Date: March 24, 2008
Location: SE Oklahoma
Posts: 491
I'd go with the .243 over the 7mm-08. As for the .260, it is a good round, but getting ammo for one will be harder.
__________________
ryalred
rifle & muzzleloader -- exhilarating
bowhunting -- obsession
reloading -- addicted
ryalred is offline  
Old December 3, 2008, 11:09 AM   #16
Art Eatman
Staff Lead
 
Join Date: November 13, 1998
Location: Terlingua, TX, USA
Posts: 22,515
My .243 gives tight groups with 55- to 85-grain bullets, but the twist is too slow for the 100s. I guess I've run maybe a thousand or so rounds through it and it's still definitely sub-MOA (Wish I were. ). I dunno; I've tagged some 20+ bucks via the 85-grain, plus some culling work. CenTex whitetails...

I haven't used my 7mm08 all that much, but the 700 Ti is, so far, sub-MOA. IMO, the 7mm08 is about the same as a .308 but ten grains lighter for bullet weight. Not enough to care about, IOW.

My seat of the pants feeling is that I'd get better penetration with a heavier bullet, when considering an angling shot on a larger deer or elk. Neck shots, or cross-body heart/lung shots, it's less of a factor.

My 2ยข...
__________________
You're from BATFE? Come right in! I use all your fine products!
Art Eatman is offline  
Old December 3, 2008, 04:14 PM   #17
ttman
Member
 
Join Date: December 17, 2001
Posts: 58
since the 308 & 243 use the same case & amount of powder, shouldn't they kick the same?
Quote:
i have a 308, 7mm/08 and 243. the 243 is just a joy to shoot and you could shoot it all day long and still be smiling. if you're going to be shooting alot at one time i think the 243 lack of recoil would keep you shooting better longer and the ammo is pretty cheap.
ttman is offline  
Old December 3, 2008, 04:24 PM   #18
Jynx92
Registration in progress
 
Join Date: November 10, 2008
Posts: 17
The reason it is common for the 248 to have a shorter barrel life is simply because of the velocity. That baby is necked down from a 308, and with light bullets (almost all of them), it's flying out just fast enough not to disinegrate in mid air or start wobbling. I would, however, still go with the 248. There are two types of rifle-lovers out there: those who believe a heavier, slower bullet is more lethal due to penetration and force; those who believe a lighter, faster, fragmenting bullet is more lethal. I am of the latter group.
Jynx92 is offline  
Old December 3, 2008, 04:27 PM   #19
Jynx92
Registration in progress
 
Join Date: November 10, 2008
Posts: 17
Quote:
since the 308 & 243 use the same case & amount of powder, shouldn't they kick the same?
No... it's simple physics. Although the force being exerted in one direction is the same in both the 248 and 308... the equal and opposite reaction is less because the lighter bullet accelerates faster out of the barrel due to it's light mass.
Jynx92 is offline  
Old December 3, 2008, 05:06 PM   #20
j.chappell
Senior Member
 
Join Date: October 14, 2008
Posts: 1,125
Quote:
The reason it is common for the 248 to have a shorter barrel life is simply because of the velocity. That baby is necked down from a 308, and with light bullets (almost all of them), it's flying out just fast enough not to disinegrate in mid air or start wobbling. I would, however, still go with the 248. There are two types of rifle-lovers out there: those who believe a heavier, slower bullet is more lethal due to penetration and force; those who believe a lighter, faster, fragmenting bullet is more lethal. I am of the latter group.
Come on,

Quote:
it's flying out just fast enough not to disinegrate in mid air or start wobbling.
Are you serious?! Where have you heard that? You really should not be posting in this or any other thread.

Oh, and its a 243 not 248.

J.
j.chappell is offline  
Old December 3, 2008, 05:13 PM   #21
thinkingman
Senior Member
 
Join Date: March 27, 2008
Location: western WA
Posts: 691
I own a 7-08 and it is a shooter.
My next rifle will be a 243...coyotes being the reason.
You just can't go wrong on the 7.62X51 case.
thinkingman is offline  
Old December 3, 2008, 05:26 PM   #22
Ace12
Member
 
Join Date: January 27, 2006
Posts: 63
Well thanks for the input guys. Looks like I might just go with the .243 for my next rifle.
Ace12 is offline  
Old December 3, 2008, 10:00 PM   #23
M Burr
Junior Member
 
Join Date: October 30, 2008
Posts: 1
You will probably never "shoot out" the barrel of a .243. Recoil is a product of the total amount of the mass of the ejecta. That would be bullet weight and grains of powder being used. Equal weight rifles (say Remington Model 7) in .243 and 7mm-08 using 50gr of powder and 100gr/140gr bullets. The 7mm-08 will recoil more because it is projecting more mass forward (190gr) than the .243 (150gr). Newtons 3rd Law For every action their is an equal and opposite reaction. Go with the .243 for coyotes. Shoot the low recoiling "reach out and touch someone" 55gr or the long time incredibly accurate Sierra 85gr HPBT.

Last edited by M Burr; December 3, 2008 at 10:04 PM. Reason: Added the last two sentences.
M Burr is offline  
Old November 13, 2010, 10:35 PM   #24
the blur
Senior Member
 
Join Date: October 3, 2010
Posts: 173
I shot my .243 bolt, (100gr) side by side to my 7mm-08 semi (140gr)

The 7mm-08 even with the semi action has more recoil.
the blur is offline  
Old November 14, 2010, 12:24 AM   #25
Buzzcook
Senior Member
 
Join Date: November 29, 2007
Location: Everett, WA
Posts: 5,620
If you hot rod the .243 it will burn out the throat of your gun faster.
5000 rounds and you'll be looking at 2 moa.

But there's no reason to kill coyotes with super fast bullets. A 55gr bullet at 3500fps kills them just as dead as one at 4000fps.
Buzzcook is offline  
Closed Thread

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 04:49 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.13757 seconds with 7 queries