There's Nothing New Under The Sun
- Thread starter GeauxTide
- Start date
check out the specs on .260 Rem and 6.5 CM. Rem has a case capacity that is slightly larger and CM has a different shoulder angle. The Rem is a great cartridge but was never all that popular being sandwiched between the .308 and the .243. However Hornady has managed to convince everyone the Creedmoor is the best cartridge ever invented and is made with pixie dust and Viagra. Put the specs of the two side by side and the Rem beats the CM by a hair on velocity. It's all in the marketing
BTW this is not a attempt to defecate on the CM, just pointing out how similar the two are. I was shooting the .260 before the CM became popular and have seen no compelling reason to buy new brass and dies to switch over. Both are good cartridges and if I were just getting in the 6.5 game I would probably go CM just for the wider availability of factory ammo unless I needed a slightly higher velocity than I could get with a CM
just out of curiosity what powder are you using? Best I can get out of my Rems safely is in the mid to upper 2700's with 29 inch barrels. I can squeeze it over 3K with 120's but that is pushing it. For safe loads over 3K I have to drop down to 107's with Benchmark.
Only time I got it over 3K with 140's was using some bad (Hogdon factory) data and darn near blew a primer completely out of the case. Had to back the charge down 2 - 3 gns to Hogdon's CM data for it to shoot safe
BTW this is not a attempt to defecate on the CM, just pointing out how similar the two are. I was shooting the .260 before the CM became popular and have seen no compelling reason to buy new brass and dies to switch over. Both are good cartridges and if I were just getting in the 6.5 game I would probably go CM just for the wider availability of factory ammo unless I needed a slightly higher velocity than I could get with a CM
just out of curiosity what powder are you using? Best I can get out of my Rems safely is in the mid to upper 2700's with 29 inch barrels. I can squeeze it over 3K with 120's but that is pushing it. For safe loads over 3K I have to drop down to 107's with Benchmark.
Only time I got it over 3K with 140's was using some bad (Hogdon factory) data and darn near blew a primer completely out of the case. Had to back the charge down 2 - 3 gns to Hogdon's CM data for it to shoot safe
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As always, thanks Unclenick for the comparision. Had a 260 long before the Creed. My best load is with RL19 under 129 Hornadys. My Savage 16 is short throated, so I'm still experimenting with seating depth. I got a Hornady OAL tool for precise measure because I'm shooting just off the lands and showing pressure on the primers at 2gr off the 47gr Hornaday X Max.
FrankenMauser
New member
A little sensitive about your 6.5mm cartridges?
You may need to cover your eyes, because I'm about to write something that may turn your head inside out.
They're all .270s.
130-140 gr bullets at 2,900 to 3,060 fps. 150/154 gr bullets at 2,800-2,900 fps.
6.5x55, 6.5-06, 6.5 PRC, 6.5-284, and the list goes on.
They're all .270s.
Pathfinder45
New member
I agree with Frankenmauser on this one. The 24" barreled 270 Winchester I use actually delivers a bit better; with optimum propellants I have settled into loads that, if I want maximums, clock out thusly:
130 grain bullets at 3,200 fps
140 grain bullets at 3,100 fps
150 grain bullets at 3,000 fps
I usually run the 130's slower because if I really want maximum power, I will be using heavier bullet anyway.
130 grain bullets at 3,200 fps
140 grain bullets at 3,100 fps
150 grain bullets at 3,000 fps
I usually run the 130's slower because if I really want maximum power, I will be using heavier bullet anyway.
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I'm not sensitive about anything. Hell, I don't even own want 6.5's any more. But who the hell cares what someone else shoots. A 140 going 2900 is a 140 going 2900. Doesn't matter the case it comes out of. Different strokes for different strokes.
Or are you looking for a "you were right I was wrong, 270 is the king of the universe"?
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Or are you looking for a "you were right I was wrong, 270 is the king of the universe"?
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Pathfinder45
New member
Simply recognizing the inherent truth of this statement, in spite of the fact that there is always something new. Like the 6.8 Western; what an innovation!(yawn...)
Nothing to get all excited or offended about....
Same weight, same velocity bullets of different diameters have different sectional densities. For same-nose, same-tail-shaped bullets, as sectional density goes up, so does the ballistic coefficient. In the case of the 6.5 vs .270, this difference is only about 5%, but some long-range shooters will pick one bullet over another for differences that small (though only the best shots are likely to gain a point from it here and there).
But it's not just a different name. With the .270 it's also a different diameter. That was my point. You may be hard-pressed to see any practical difference close up, but the smaller .264" would go about 5% further before going sub-sonic, for example.
A more practical difference will likely be that all the exact same bullet designs are not available in both calibers. Among the SAAMI standard chambers and rifling pitches, the 260 Rem with standard 9" twist, have been known not to stabilize the longest available bullets adequately. So the differences really come down to the details of what you want to put through them and how far away you need to hit the target. Mind you, as with Don's rifle, customization takes all the limits off the table.
A more practical difference will likely be that all the exact same bullet designs are not available in both calibers. Among the SAAMI standard chambers and rifling pitches, the 260 Rem with standard 9" twist, have been known not to stabilize the longest available bullets adequately. So the differences really come down to the details of what you want to put through them and how far away you need to hit the target. Mind you, as with Don's rifle, customization takes all the limits off the table.
I know they're different diameters. A 270 isn't a 6.5. but still, what the hell does it matter what someone else shoots? Someone wants to think their 6.5 prc is the greatest thing in the world? So what. Someone thinks the 30-06 is God's gift to man kind? Who cares. As for "nothing new under the sun" we don't all drive cars with wooden wheels. Are steel belted radials "reinventing the wheel"? Progress isn't instantaneous. If you think all has been found that will ever be found, take a look outside
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FrankenMauser
New member
It matters when your only response in a thread is to crap all over the post, by claiming that the person is "pooping" all over a certain cartridge, while failing at attempting to be "edgy".
Stop backpedaling and defend your position.
You're digging a hole.
This is the most hypocritical combination of responses that I have ever seen on TFL.
If you can't add to the discussion, don't respond.
What you're doing is what other parts of the internet call sh$%-posting.