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The only reason I’d ever choose a .308 over the .270, would be to gain the short action. But it would be a 7mm08, .260 or 6.5CM, long before a .308......
BT53 "Where do they find young men like this?" Reporter Savidge, Iraq Elk, it's what's for dinner....
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Campfire Outfitter
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Why buy a .270? For Daughter #1 it came down to this: 1. An unwanted rifle that needed to be sold or traded. 2. A desire for a little longer reach than her .308 Win could provide without a lot more recoil 3. Opportunity
She has used her .308 Win effectively for antelope out to 350 yards plus (forget the exact range) with a 130g TTSX @ 3045fps. Using 2000fps and 1500fpe as a rule of thumb for elk, that load fell short past around 395 yards, even at 7000 feet altitude. Since she practices out to 600 and we hunt elk in open country where ranges can long, we both wanted something for her that had more range. The .270 Win with a 150g LRAB came up as a possibility. When I found a good used Remington M700 I could trade the unwanted rifle for, it was a done deal. Her .308 tops out at 2744fps with a 165g bullet and a max dose of Varget. I was pretty sure I could push a 150g in a .270 Win to 2850fps or more. Turns out I was correct - her .270 Win pushes a 150g LRAB to 2912fps.
What does that do for ballistics? Here's a comparison using a .270 with a 129g LRX @ 3100fps compared to Daughters .308 and a 130g TTSX @ 3045fps. The results assume 7000ft altitude and MPBR zero for a 6" target
.270/127g LRX @ 3100fps (est.) vs .308/130g TTSX @ 3025fps (actual) Zero = 266yds vs 256yds MPBR = 313yds vs 301yds 1500fpe = 550yds vs 395yds 2000fps = 770yds vs 555yds Drop @600 = -48.0" vs -57.4" FPS @600 = 2220 vs 1929 FPE @600 = 1412 vs 1074 Drift @600 = 18.7" vs 26.7"
Here's another comparison based on 7000 feet altitude, MPBR zero for a 6" diameter target, This comparison uses actual velocities for her 22" .270/150g LRAB and Nosler's 168g .308 LRAB factory load and a 24" barrel:
.270/150 LRAB @ 2912fps @ 2912fps (chrono'd) vs .308/168g LRAB @ 2750fps (Nosler claim for their ammo) Zero = 254yds vs 241yds MPBR = 300yds vs 284yds 1500fpe = 710yds vs 615yds 2000fps = 835yds vs 620yds Drop @600 = 52.5" vs -63.7" FPS @600 = 2236 vs 2022 FPE @600 = 1665 vs 1525 Drift @600 = 15.5" vs 19.3"
Recoil calculations showed all loads above came in under 18 ft-lbs.
Last edited by Coyote_Hunter; 09/03/19. Reason: spelnig
Coyote Hunter - NRA Patriot Life, NRA Whittington Center Life, GOA, DAD - and I VOTE!
No, I'm not a Ruger bigot - just an unabashed fan of their revolvers, M77's and #1's.
A good .30-06 is a 99% solution.
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I’ve shot a pile of critters with both and can say there really isn’t much difference. I’d just let the application dictate which I got based on the best rifle for said application. If I was needing an open-country rifle that wasn’t going to be carried at port arms in thick woods, that rifle would be a long action with a 24” barrel chambered in .270 Win.
Conversely, if I needed a tiptoeing around the woods rifle for shots under 150 yards I’d give the nod to a short action .308 Win with a 20” barrel.
I, too, have the greatest percentage of DRTs with .277s than any other, followed very closely by .264 and .257. The .284s come next, then the .308s and the .338s are dead last.
What could be a sadder way to end a life than to die having never hunted with great dogs, good friends and your family?
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Easy----- I do believe the 7.62 is a NATO round and the .270 ain't. Everyone should own a .308. If I wanted to long stroke my bolt I'd bypass the .25 and the .27 and go right to the 06---- same ,same 150gr 165, 200 as my .308. no brainer------- Web
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Hey, I take the opposite view, my .308 got so little use. In a factory rifle heavier bullets are not optimal, the neck is too short. I see no reason to pick it over a 30/06 or the .270. The .308 case magically turns into a much more useful .243- yeah then the neck is long enough. The .243 design is optimal for this case .
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Campfire Ranger
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Short arms......😀
Last edited by navlav8r; 09/12/19.
NRA Life,Endowment,Patron or Benefactor since '72.
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308. 155 Scenar. Class dismissed.
“There are some who can live without wild things and some who cannot.” ALDO LEOPOLD
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Shot a pile of deer size animals with both. Bullet performance can get erratic when velocity gets north of 3000fps in my experience. I’ve had several bullet failures with the 270. My sweet spot is between 2500-2900. 308 territory for sure. The 308 is far easier to achieve top accuracy from as well...due to both design and available bullets...or that’s my guess anyways. Also someone pointed out above that you can get the same velocity from a 308 as you can the 270 bullet weights being equal...if velocity is your goal. Trajectory is about the same too. Let’s not forget 308 barrels literally last forever.
The 308 is the best of the best imho
Last edited by Quak; 09/13/19.
GOD Bless America
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270 in a feather weight or Mt. Rifle configuration, 308 in a carbine or mannlicher set up. Only time I would pick the 308 first is in an auto loader otherwise they are more similar than different. If you made me walk across hot coals I might confess the 308 is the more inherantly accurate cartridge. But this could be due to the scarcity of heavy barreled 270s where as there are many 308s in a target configuration.
After the 243 I shot a BLR in 308 and always hankered for a 270 which was probably from reading practically everything Jack O'Conner wrote. When I finally graduated from the 308 I went to the 7RM thanks to the writing of Les Bowman and Warren Page. I still can't pick a favorite but lean more to the 270 for the at least theoretical advantages.
"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli
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