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10/20/2017 1:01:18 AM
9/22/2017 12:11:25 AM
Posted: 7/26/2005 1:13:38 AM EDT
[Last Edit: 7/26/2005 1:25:36 AM EDT by Death_006]
I currently have a 7mm-08 in the Browning A-Bolt Medallion. It is a super accurate and light kicking light-weight rifle. I was wondering how the .308 compares to this cartridge? I have fired a few rounds out of an M1A from Springfield and kept the brass casing. I noticed that the casings were nearly identical. This got me thinking about what the differences are between these two calibers. The 7mm-08 is obviously more expensive to shoot, but not having a 308 doesn't allow for me to really test out the accuracy of the 308 at longer ranges. I know the 308 seems to be the most common round for police sniper rifles so it must be accurate. So basically what is the difference between the performance and accuracy of these two different types of rounds? Thanks for your help!
Link Posted: 7/26/2005 1:21:45 AM EDT
.024
Link Posted: 7/26/2005 1:24:45 AM EDT

Originally Posted By SouthHoof:
.024



Awwwwwwwwww! Smartass


I knew I worded it the wrong way when I asked the differences in these two calibers I stand corrected and now want to know something different. What is the difference in performance/accuracy of these two cartridges?
Link Posted: 7/26/2005 1:46:01 AM EDT
7-08 tends be loaded to achieve highter speeds when compared to .308. Some believe the .284 projectile is more stable in flight....simple thinking IMHO. That has much more to do with projectile selection than any inherently better tendancies.

The 7-08 was developed as a wildcat cartridge from the .308 case & has since been chambered by the rifle mfg's for the purpose of selling more rifles. It is a necked down .308.
Link Posted: 7/26/2005 1:47:01 AM EDT
much like the .25-06
Link Posted: 7/26/2005 2:00:39 AM EDT

Originally Posted By SouthHoof:
7-08 tends be loaded to achieve highter speeds when compared to .308. Some believe the .284 projectile is more stable in flight....simple thinking IMHO. That has much more to do with projectile selection than any inherently better tendancies.

The 7-08 was developed as a wildcat cartridge from the .308 case & has since been chambered by the rifle mfg's for the purpose of selling more rifles. It is a necked down .308.



Do those higher speeds have any affect on the accuracy of the bullet? Which is more accurate if you were to put them in a solid vice and shoot them? The .308 or the 7mm-.08?
Link Posted: 7/26/2005 2:35:08 AM EDT
From my short personal experience with the.7mm/08, it just shoots a little flatter than the .308 at longer distances and has somewhat less recoil. Otherwise, I wouldn't walk across the street for the difference. It is just a .308 case that has been sized down to .284 but not all the way to .243.
Link Posted: 9/10/2005 4:02:07 AM EDT

Originally Posted By gordo99:
From my short personal experience with the.7mm/08, it just shoots a little flatter than the .308 at longer distances and has somewhat less recoil. Otherwise, I wouldn't walk across the street for the difference. It is just a .308 case that has been sized down to .284 but not all the way to .243.



Ok. I was just wondering how they perform compared to each other. If money wasn't an option and ammo was free, which would be best?
Link Posted: 9/10/2005 4:09:17 AM EDT

Originally Posted By Death_006:

Originally Posted By gordo99:
From my short personal experience with the.7mm/08, it just shoots a little flatter than the .308 at longer distances and has somewhat less recoil. Otherwise, I wouldn't walk across the street for the difference. It is just a .308 case that has been sized down to .284 but not all the way to .243.



Ok. I was just wondering how they perform compared to each other. If money wasn't an option and ammo was free, which would be best?




Don't know about terminal effects but the less recoil and ballistic advantages of a 7mm bullet is pretty nice. I love my 7mm mag and would never trade it for a 300 WM even though they are more popular.

If you reload the difference in cost is insignificant. I shoot a 243 also and its is also quite a nice shooting gun.
Link Posted: 9/29/2005 3:04:04 PM EDT

Originally Posted By FredM:

Originally Posted By Death_006:

Originally Posted By gordo99:
From my short personal experience with the.7mm/08, it just shoots a little flatter than the .308 at longer distances and has somewhat less recoil. Otherwise, I wouldn't walk across the street for the difference. It is just a .308 case that has been sized down to .284 but not all the way to .243.



Ok. I was just wondering how they perform compared to each other. If money wasn't an option and ammo was free, which would be best?




Don't know about terminal effects but the less recoil and ballistic advantages of a 7mm bullet is pretty nice. I love my 7mm mag and would never trade it for a 300 WM even though they are more popular.

If you reload the difference in cost is insignificant. I shoot a 243 also and its is also quite a nice shooting gun.



Are there any websites that tell of the terminal ballistics performance of the ammo?
Link Posted: 9/29/2005 3:07:57 PM EDT

Originally Posted By Death_006:

Originally Posted By FredM:

Originally Posted By Death_006:

Originally Posted By gordo99:
From my short personal experience with the.7mm/08, it just shoots a little flatter than the .308 at longer distances and has somewhat less recoil. Otherwise, I wouldn't walk across the street for the difference. It is just a .308 case that has been sized down to .284 but not all the way to .243.



Ok. I was just wondering how they perform compared to each other. If money wasn't an option and ammo was free, which would be best?




Don't know about terminal effects but the less recoil and ballistic advantages of a 7mm bullet is pretty nice. I love my 7mm mag and would never trade it for a 300 WM even though they are more popular.

If you reload the difference in cost is insignificant. I shoot a 243 also and its is also quite a nice shooting gun.



Are there any websites that tell of the terminal ballistics performance of the ammo?



Check out the remington website. You can compare different loads and calibers side by side.
Link Posted: 9/29/2005 3:08:00 PM EDT
Isn't that the caliber that the Secret Service chose for it's bolt guns?
Link Posted: 9/29/2005 3:10:29 PM EDT

Originally Posted By Kihn:
Isn't that the caliber that the Secret Service chose for it's bolt guns?



I've been told the USSS uses 7mm Mags for their bolt guns.
Link Posted: 9/29/2005 3:35:08 PM EDT
The .308 is superior at longer ranges. This is why more long range types us it fo rits accuracy and because it is somewhat forgiving in the reloading dept. . I use it for 600 yard prone as well as 800 yard prone. Most of the guys I shoot with in competition have tried different configuration of the .308 case and most come back to the .308.

If you like the 7mm-08 and it does what you want then nothing wrong with it. But if you are looking into the .308 then maybe you should invest in a quality rifle and some quality optics and some quality ammo and play to see if it is what you want.

shoot what ya brung and have a blast.
Link Posted: 9/29/2005 3:44:28 PM EDT
The 243 260 7mm-08 and 308 are all the same case, just different neck sizes.

The .308 is almost always considered a more accurate round just becuase the bulk of the rifles built for accuracy with an action based on that length cartridge are almost always chambered for the 308. The fact that its been a military round for 40+ years has helped a bunch as well.

I have personally never owned a 308 but have built a couple of 7mm-08's that shot like no-ones business. It is a great round for hunting the smaller critters. One plus for it is the higher sectional density in the heaver bullets offered for the .284. If you compare the 7mm08 to a 270 both with 140gr bullets you'll see that for a small case it is on the 270's heels the whole way untill 400 where it actually eclipses it by a tad.

As for your accuracy question, there are way too many variables left out there to say which one is more accurate.

If you have one already, stick with it. If you are leaning towards the 308, just have your rifle re-barelled for the 308
Link Posted: 9/29/2005 4:34:37 PM EDT
[Last Edit: 9/29/2005 4:35:19 PM EDT by op_rod]
Originally Posted By petagunner:
The 243 260 7mm-08 and 308 are all the same case, just different neck sizes.
quote]

And .358 Winchester, a nice cartridge that is almost gone.
Link Posted: 9/29/2005 4:38:31 PM EDT

Originally Posted By Mall-Ninja:

Originally Posted By Kihn:
Isn't that the caliber that the Secret Service chose for it's bolt guns?



I've been told the USSS uses 7mm Mags for their bolt guns.



Heard the same which wouldn't surprise me...

It shoots flatter, has more energy up close. I wouldn't use it for a kilometer sniper's weapon, but inside of 400 yards, it's flatter and hotter than .308, IIRC.

Link Posted: 9/29/2005 4:55:03 PM EDT
I think alot of the reason that the 7-08 is popular is that it was an easy "mexican" cartridge. Can't have military cartridges there, so the 7-08 was used for guns heading that way. Kinda like why the .38 super is popular down there and I think that there weer a few .222 AR's made for export as well for countries with similar laws.

Might be wrong.

I do not see a big enough diff ballistically to bother with it, and 99.8% stuff geared towards the .308, and there is ALOT more focus and products for the .308.


Anyone remember the .307 Winchester?
Link Posted: 9/29/2005 5:15:17 PM EDT

Originally Posted By op_rod:
Originally Posted By petagunner:
The 243 260 7mm-08 and 308 are all the same case, just different neck sizes.
quote]

And .358 Winchester, a nice cartridge that is almost gone.



OOPS! Forgot about that one! Funny that they never did anything with that case in the 8mm/325 caliber.
Link Posted: 9/29/2005 5:42:27 PM EDT
[Last Edit: 9/29/2005 5:53:34 PM EDT by Kihn]
.



Edited cause the Remington Model 8 was chambered in something else.
Link Posted: 9/29/2005 7:53:50 PM EDT
Biggest problem with accuracy in the 7-08 is with the lack of a variety of match bullets.

Good cartridge, a marginal for elk but capable of doing good work in competant hands.

SRM
Link Posted: 9/29/2005 8:15:12 PM EDT
IIRC the 7mm-08 essentially duplicates the ballistics of the 7x57mm Mauser, a round I have used with great success on deer, and one that is preferred by a friend of mine for all game up to Moose. He kills a few dozen big game animals every year, so I'm inclined to believe him.
Link Posted: 9/29/2005 8:21:43 PM EDT

kinda useful for rifles in counties with miltary caliber bans
In theory a 7mm bullet of comparable weight has a better ballistic coefficent than a .30 but in reality not enough diffence to really even argue about
Link Posted: 9/29/2005 8:34:25 PM EDT

Originally Posted By yekimak:
I think alot of the reason that the 7-08 is popular is that it was an easy "mexican" cartridge. Can't have military cartridges there, so the 7-08 was used for guns heading that way. Kinda like why the .38 super is popular down there and I think that there weer a few .222 AR's made for export as well for countries with similar laws.

Might be wrong.

I do not see a big enough diff ballistically to bother with it, and 99.8% stuff geared towards the .308, and there is ALOT more focus and products for the .308.


Anyone remember the .307 Winchester?



You are right. The 7-08 was developed for metallic shilloute shooting and this sport has roots in Mexico. Now that rifle shooting is nearly illegal there....

Flatter within 500 meters but only by a gnats ass. Less recoil is the main benefit. But the heavier bullets with smae of better ballistics put the .308 a bit ahead.

Now, if you have a full length barrel, 3000 FPS with Palma bullets (155 grain) are possible. My Shilen tube loves them, even though it is a 1:10 twist. Honest 3000 FPS from its 26" tube. It can hold 1/2 MOA at 600, in dead still conditions.

Compare the numbers...the 7 can launch a 175 grain at 2500 FPS. BC of that Sierra is .533. The .308 can launch a 200 grain Sierra at the same speed BUT the BC is .565. Slight advantage with the .308.
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