22" 308 VS 24" 270? 270 outdoes .308 w/all loadings?! [Archive] - Glock Talk

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glockbanger
06-26-2012, 18:04
I've decided that since I want to shoot primarily light bullets with low recoil, the 270 is the best fit for me. The problem is, the 308 serves this role quite well with slightly less attractive SD and BC in light weight bullets. Nonetheless it seems that the 270 is more lethal and performs better with 130-160 grain bullets. I also like 30-06 simply for the higher bullet weight versatility.

So I've got a decision to make. It's between a 22" 308 and a 24" 270. I believe that the .270 give me greater versatility, especially with lighter bullets. It I were to go with a 308, I may end up shooting 165 grains to make use of better BC and SD. I like the flat shooting, low recoil aspects of the 270 as well. Is it true that a 270 equals or outperforms the 308 with all bullet weights? If anyone has a link to a good comparison of velocities, BCs, SDs of these calibers and also 30-06 I'd really appreciate it.

NeverMore1701
06-26-2012, 18:16
I'd say it's impossible to definitively say one cartridge or the other is better in every situation and role. I will say that I like my 260 Rem better than any .308 I've shot.

K.Kiser
06-26-2012, 18:17
When all said an done the 30-06 is the strongest in a throwdown match, and the 308 is the most efficient out of shorter barrels... 130's in a 270 aren't gonna kick bad, and neither is the 308 with, or really the 30-06 for that matter... They just aren't hard reversing cartridges, but I'd give the lightest recoil to the 308 w/150's but they aren't gonna fly like 140-150's out of the 270 or the 165-180's out of the 30 calibers... If you're really concerned about recoil, I'd say give up some long range performance and shoot 150's in the 308, and the next best would be 130's in the 270..

K.Kiser
06-26-2012, 18:19
I will say that I like my 260 Rem better than any .308 I've shot.

That's a fine flying cartridge, no doubt.. The 7mm-08 is also a very nice performing round..

countrygun
06-26-2012, 18:41
I'd say it's impossible to definitively say one cartridge or the other is better in every situation and role. I will say that I like my 260 Rem better than any .308 I've shot.


I'm building a 6.5-06 on a Savage 110, just for grins and high BC/SD with heavy bullets.

vafish
06-26-2012, 19:02
At any reasonable hunting distance no animal on the planet is going to ne able to tell the difference between a .308, .270, and a .30-06.

As for all the mental ************ over bullet drop and wind drift, you ability to estimate range and know the dope of your gun is much more important.

How many different ways are you going to ask the same question?

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NeverMore1701
06-26-2012, 19:14
That's a fine flying cartridge, no doubt.. The 7mm-08 is also a very nice performing round..

My second favorite is a full benchrest highpower comp gun in 7mm-08, that is one heavy SOB though! Makes my 26" bull barreled .260 feel light!

glockbanger
06-26-2012, 20:27
When all said an done the 30-06 is the strongest in a throwdown match, and the 308 is the most efficient out of shorter barrels... 130's in a 270 aren't gonna kick bad, and neither is the 308 with, or really the 30-06 for that matter... They just aren't hard reversing cartridges, but I'd give the lightest recoil to the 308 w/150's but they aren't gonna fly like 140-150's out of the 270 or the 165-180's out of the 30 calibers... If you're really concerned about recoil, I'd say give up some long range performance and shoot 150's in the 308, and the next best would be 130's in the 270..

I'm not super concerned, I just know that 180 grain 30-06 recoil is more than I want to be shooting a lot. Also, I probably prefer something less that a 165 in either 30-06 or 308. I want to shoot a lighter bullet but also get the max potential from it. It seems, of the three calibers on my list, 270 serves this purpose the best. But also, from ballistics I've seen, it seems that 270 does equally well or better ballistically than 308 in any bullet weight.

glockbanger
06-26-2012, 21:30
So far I'm leaning towards the 270 mainly because it seems like it the 270 equals or outperforms 308 and 30-06 in every bullet weight because of better SD/BC. Is this right?

The appeal of 308 is extreme accuracy, how much better "ballpark" we talking? Also attractive, bullet availability, and the fact it has a shorter action, and utilizes a 22" barrel better due to faster burning powder.

Appeal of the 30-06 is simply it can shoot 180+ grain loads better.

Decguns
06-26-2012, 22:02
The gun community knew 100yrs ago the 6.5-7mm (.264, .277 & .284) projectiles performed better than the 30 cals... and most other projo diameters. The high BC meant they shot flatter, and the high SD meant they penetrated deeper.

From extensive experimenting in the 1980's, I discovered the 270 WIN shoots substantially flatter with the 90-130gr projo weights as compared to the same projo weights in the 308 & 30-06. Once you go to 150grs in the 270, all advantage is lost over the 30 cal's. The 270 is a necked down 30-06 case after all!

I've taken black bear, elk & moose with the 270 WIN and the 130gr Speer Grand Slam projectile. When I just want raw power, I'll just pull the SAKO 7MM STW out of the safe. When I want a short action, I just grab a 308. No need to limit yourself to one caliber.

Kentucky Shooter
06-27-2012, 05:36
So far I'm leaning towards the 270 mainly because it seems like it the 270 equals or outperforms 308 and 30-06 in every bullet weight because of better SD/BC. Is this right?

The appeal of 308 is extreme accuracy, how much better "ballpark" we talking? Also attractive, bullet availability, and the fact it has a shorter action, and utilizes a 22" barrel better due to faster burning powder.

Appeal of the 30-06 is simply it can shoot 180+ grain loads better.

As much as i like the 270, i dont think you can say it out performs the 308 or 30-06 in every bullet weight. I just feel that is an oversimplification and too general a statement to be able to be proven true.


Any of these will do the greater majority of any hunting needs in North America.


My thoughts? Get all 3 over a period of time and you have all the bases covered. If i could only have 1 or in trying to decide which one to get first i would consider the following:


1) is this gun to be used primarily for target shooting or perhaps competition? Then get a .308
2) will you ever be hunting elk or possibly bear? If so, get a 30-06.
3) will i be doing a lot of open country hunting where i need the flattest shooting round of the 3? Then get the .270
4) if i need one general purpose gun that will cover all bases? As much as i love the 270, i would say 30-06 if i needed it to do all the above
5) if i need an all purpose hunting round and antelope or mule deer is the largest animal on the agenda? I would get a 270


These are just some thoughts of mine. I will also stress, there are no really wrong answers. These are 3 of the most popular cartridges on the planet and for good reason. All are very effective and can be adapted to use for about any sporting purpose in the US.

PlasticGuy
06-27-2012, 07:53
Personally, I don't have any use for a non-magnum long action cartridge.

The .260, 7mm-08, and .308 are so similar ballistically to the .270 and .30-06 that no game animal on the planet would know the difference. You can use slightly heavier bullets with the long action cartridges, but the premium bullets we have now make the heaviest bullets unneccessary for hunting.

ithaca_deerslayer
06-27-2012, 21:24
At any reasonable hunting distance no animal on the planet is going to ne able to tell the difference between a .308, .270, and a .30-06.

As for all the mental ************ over bullet drop and wind drift, you ability to estimate range and know the dope of your gun is much more important.

How many different ways are you going to ask the same question?


There's an answer he's looking for. You just haven't given it to him.

The best answer is a .308 in a 24" barrel. Extra velocity and lower recoil. Savage 10FP comes to mind, with sub 1 moa accuracy.

But I think he's decided on a .270 :)

glockbanger
06-27-2012, 21:39
There's an answer he's looking for. You just haven't given it to him.

The best answer is a .308 in a 24" barrel. Extra velocity and lower recoil. Savage 10FP comes to mind, with sub 1 moa accuracy.

But I think he's decided on a .270 :)

I'd go with a 22" in 308 and 24" in 270. Not decided!! :crying: But leaning toward 308 mainly for surplus ammo.

ithaca_deerslayer
06-27-2012, 21:49
I'd go with a 22" in 308 and 24" in 270. Not decided!! :crying: But leaning toward 308 mainly for surplus ammo.

The 24" in 308 will be shorter than the 24" in 270. The reduction in recoil is the gift you will enjoy. And you will pick up some velocity.

You can't lose no matter the caliber. You've obviously read some things to favor the 270. Nothing wrong with that :)

RWBlue
06-27-2012, 21:50
I've decided that since I want to shoot primarily light bullets with low recoil, the 270 is the best fit for me. The problem is, the 308 serves this role quite well with slightly less attractive SD and BC in light weight bullets. Nonetheless it seems that the 270 is more lethal and performs better with 130-160 grain bullets. I also like 30-06 simply for the higher bullet weight versatility.

So I've got a decision to make. It's between a 22" 308 and a 24" 270. I believe that the .270 give me greater versatility, especially with lighter bullets. It I were to go with a 308, I may end up shooting 165 grains to make use of better BC and SD. I like the flat shooting, low recoil aspects of the 270 as well. Is it true that a 270 equals or outperforms the 308 with all bullet weights? If anyone has a link to a good comparison of velocities, BCs, SDs of these calibers and also 30-06 I'd really appreciate it.

Physics is a *****.

You can not considering killing power.

glock2740
06-27-2012, 22:00
As much as it sucks trying to compare calibers, break them down and try to figure which one is the best, it's alot of fun too. :cool: I have done all of this crap (and still do) so many times it isn't funny. The truth is, that on paper, you can argue all day long about what's better than what. That's why I have quite a few rifles in different calibers. Sadly, hunting season just isn't long enough to take advantage of owning as many as I do. :crying:You won't go wrong with any of the one's you are looking at. Good luck and have fun crunching those numbers. :supergrin:

glockbanger
06-27-2012, 23:56
The 24" in 308 will be shorter than the 24" in 270. The reduction in recoil is the gift you will enjoy. And you will pick up some velocity.

You can't lose no matter the caliber. You've obviously read some things to favor the 270. Nothing wrong with that :)

Well, the thing is, I'm confident white tails need nothing more than a 150 grain bullet. The 270 does the 150 great as well as everything down to 110.

The deciding factor for me is ammo price and surplus availability. If I'd really looked at prices earlier I might've saved myself some time. I'll most likely get some Portugal 83-2 147 grain surplus and start shooting away.

I think you're the one drinking the 270 kool aid!:tongueout: I won't lie though, me too.

Searching on the net, I was barely able to find anything other than 130s and 150s in 270, and since I don't reload, that is really a drag to me. With more ammo options, I'd def go with 270 instead for what I need it for.

glockbanger
06-28-2012, 00:00
As much as it sucks trying to compare calibers, break them down and try to figure which one is the best, it's alot of fun too. :cool: I have done all of this crap (and still do) so many times it isn't funny. The truth is, that on paper, you can argue all day long about what's better than what. That's why I have quite a few rifles in different calibers. Sadly, hunting season just isn't long enough to take advantage of owning as many as I do. :crying:You won't go wrong with any of the one's you are looking at. Good luck and have fun crunching those numbers. :supergrin:

You like it??? Not me, it's a much harder task when you're trying to buy only one rifle lol. It's likely I'll end up with a 270 somewhere way down the road. It'll be a hard buy though consider the 308 will do basically everything the 270 can. If 308 recoil gets to me, I may keep it and buy a 270 simply to utilize the 130 loads.

glock2740
06-28-2012, 05:12
The recoil between those two is unnoticeable IMO. If you like the .270 ballistics, go with the .270