4597
.30 Stingray
Posts: 182
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Post by 4597 on Oct 24, 2016 20:37:46 GMT -5
How or why is the 6mm Credmore any better than say a .243 or 6 Remington? Shorter powder column?
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Post by zeus on Oct 24, 2016 21:06:47 GMT -5
I am not sure why it does as well. Maybe the slightly changed case dimensions with a longer neck etc. but I can tell you that it's ridiculously accurate. I have never been a 243/6mm caliber fan but have become a new found fan.
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COR
.375 Atomic
Posts: 1,522
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Post by COR on Oct 25, 2016 4:17:33 GMT -5
How or why is the 6mm Credmore any better than say a .243 or 6 Remington? Shorter powder column?
Grab the newest Handloader, they have a 6 Creedmore article that's well done and addresses your question.
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Post by 2 Dogs on Oct 25, 2016 6:26:56 GMT -5
It's really about barrel life. A 6 in any of the slightly reduced case capacity cartridges will run with the .243 and give considerably longer barrel life.
My fav of the bunch is Tubbs original 6X. 6BR accuracy and 2000-2500 barrel life. I've had 4 and every one has been spectacular.
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Post by AxeHandle on Oct 25, 2016 6:57:54 GMT -5
Velocity, accuracy, platform, Intended purpose.... Smaller case for for accuracy, larger case for velocity. Platform can be bolt gun, semi auto , or single shot... Velocity for a target gun is basically just fast enough to remain supersonic at the intended target distance. Velocity for a hunting gun depends on the game and the bullet. Pick what fits your needs and play. Had my old 222 out a couple of weeks ago. Kind of old school bench rest stuff.. Only one brand of ammo on the shelf. Better have brass in hand to load for it. Cartridge held the record for 200 heavy varmint for 20 years from the 70s to the 90s. Rifle built and record target shot by my old friend Earl Case.. The now old 22 and 6mm PPC replaced it on the target ranges in the 80s. Did they shoot better? I don't think so. The PPC was new and different and we are always looking for something new to spend our money on.
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Post by bradshaw on Oct 25, 2016 9:11:01 GMT -5
How or why is the 6mm Credmore any better than say a .243 or 6 Remington? Shorter powder column?
*** C-R-E-E-D-M-O-O-R is a handsome word visually, worth spelling correctly. Perhaps write-ups in The Silhouette, the monthly IHMSA publication, where the word was bastardized as "Creedmore." This shooter fought a losing battle for correct spelling. Articles on the historic 1874 match between Irish and American sharpshooters have variously called "Creedmoor" a location in England or Long Island, New York. The word may be a conjunction from the "Creed Farm" in upstate New York, and its farmland, said to be flat as a "Moor." Bought, for most of my life, into Creedmoor as a town, in England or New York. However, the only town I've driven through by the name is Creedmoor, Texas (yes, it has the correct spelling). Some rifleman at the 1874 match fired from prone. Others reclined on their back, sighting the black powder rifle with muzzle rested between boot toes. Somewhere down the line it became the Creedmoor position. Skip Talbot perfected Creedmoor for single shot pistols in silhouette, setting the 40x40 and 60x60 records with 7mm/308x1-3/4" he built on the center grip XP-100, with George Peterson thumbhole stock. CREEDMOOR signifies long range marksmanship. Silhouette preserves Creedmoor in its original meaning----a reclining position without artificial rest----albeit for handguns. To apply the appellation "Creedmoor" to a cartridge honors history. David Bradshaw
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4597
.30 Stingray
Posts: 182
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Post by 4597 on Oct 25, 2016 20:52:19 GMT -5
Well Mr. Bradshaw I have been dressed down by the best of them now including you. But since your Spelling class, how about explaining the why.
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Post by bradshaw on Oct 25, 2016 22:20:00 GMT -5
4597..... you're hardly responsible for the misspelling "Creedmoor." It is a disease of plague proportions propagated by editorial indifference.
Persons who've shot the .243 Winchester (.243/308), the 6mm Remington (6mmx57mm), and 6mm Creedmoor in competition are invited to whittle this stick. A hunter can select the one that suits his or her fancy; nothing killed will ever know which cartridge supplied the fire. A target shooter may find longer barrel life in the 6mm Creedmoor. I've hunted with the .243, and taken a substantial charge of venison with an old dogleg Ruger M77 in 6mm Remington. A rare distinction, that slick Ruger never fired twice to take a deer, never missed, nor lost a deer. In keeping with the cartridge, there have been occasions to hold fire, occasions a strong round would have spoken.
Built on the tapering body of the 7x57mm Mauser, the 6mm Remington is an antique. Yet it feeds smooth as cream, and its long neck finds much favor with this shooter. And then there is a little cartridge by Bench Rest Hall of Famer Jim Stekl, the 6mm BR Remington (6mm/308x1.5"). There is a photo of this shooter with boys from Redding and Sierra, along with Remington's Jim Stelk himself in Hodgdon Manual #26. An XP-100 in 6mm BR has just shot 80x80 (Sierra 100 SBT over Accurate 2460). Oh, sometimes you gamble on that little bullet pushing a ram. For a 15" pistol or 16" carbine, I'd take the 6mm BR before the other three. For availability, the .243 Win. For match, perhaps the 6mm Creedmoor. For hunting, any one of the four. David Bradshaw
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Post by kings6 on Oct 25, 2016 22:46:03 GMT -5
There are plans for my buddy Zeus to help me get set up with one of the little guys like the Grendel in an AR platform but for now I will stick with the bigger headed 243 aka 7mm-08 as my small center fire of choice.
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Post by AxeHandle on Oct 26, 2016 7:17:05 GMT -5
The 284 Winchester based 6.5-284 has long been the darling of the 1000 yard shooters at Camp Perry. I always understood that the 6.5 bore was the sweet spot balancing bullet performance and recoil for long range accuracy. Flash forward a bit and I hear a lot of 1000 yard F class shooters are shooting the smaller 6mm/243 bullet out of smaller cases like the BR and even the 222 mag based 6x47.
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gunzo
.30 Stingray
Posts: 423
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Post by gunzo on Oct 26, 2016 9:26:52 GMT -5
How or why is the 6mm Credmore any better than say a .243 or 6 Remington? Shorter powder column?
The Creedmoor's only advantage over the other two is when very long for caliber, high ballistic coefficient, very low drag bullets are loaded to magazine length in short action rifles. These bullets loaded in a 6mm or .243 will have to be seated deep & will compromise powder space. The shorter but less tapered Creedmoor maintains it's available powder space when loaded in this fashion. The Creedmoor has no advantage IMO if lighter/shorter bullets are used or all three cartridges were loaded to a longer over all length.
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4597
.30 Stingray
Posts: 182
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Post by 4597 on Oct 26, 2016 15:39:33 GMT -5
I'm pretty sure I understand the why. Thanks for explaining. I feel an I'm sorry for my reaction is in order. So I'm sorry.
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Post by bradshaw on Oct 26, 2016 19:20:21 GMT -5
4597.... your question on 6mm Rem., .243 Win., 6mm Creedmoor and any other 6mm's is sound. Add the 6mm PPC and 6mm BR, and any other adaptations to the .243 projectile. It would be hard to overstate my affection for the mild mannered 6mm Remington as housed in an old dog leg Ruger M77 with Leopold Vari-X II 2-7x. A 6mm/.243 convects the finesse of marksmanship. David Bradshaw
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Post by 2 Dogs on Oct 26, 2016 20:08:58 GMT -5
How or why is the 6mm Credmore any better than say a .243 or 6 Remington? Shorter powder column?
The Creedmoor's only advantage over the other two is when very long for caliber, high ballistic coefficient, very low drag bullets are loaded to magazine length in short action rifles. These bullets loaded in a 6mm or .243 will have to be seated deep & will compromise powder space. The shorter but less tapered Creedmoor maintains it's available powder space when loaded in this fashion. The Creedmoor has no advantage IMO if lighter/shorter bullets are used or all three cartridges were loaded to a longer over all length. Keep in mind, the long heavy for caliber .243" bullets will require a 1/8" twist barrel. In other words, you factory .243 probably wont stabilize them.
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4597
.30 Stingray
Posts: 182
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Post by 4597 on Oct 27, 2016 13:43:02 GMT -5
I have been shooting 6 BR for a long time and I have always loved it. And after the 105's and longer came out I added the Dasher. Boy is that hard to beat. I have not had the chance to shoot it much out past 600 yards but I think it will stay with pretty much anything out there.
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