6 Creedmoor

Haven't posted any builds for ages

https://hosting.photobucket.com/imag...720&fit=bounds

I recently built up a 6 Creedmoor for a repeat customer

https://hosting.photobucket.com/imag...720&fit=bounds

He supplied the action & chassis, I supplied the Bartlein barrel, Gunsmithing, initial load development & running in

https://hosting.photobucket.com/imag...720&fit=bounds

He shot it today & sent me this picture of 3 shots :cool:

https://hosting.photobucket.com/imag...720&fit=bounds

He is pretty happy with it :)

What do you use this rig for? Impressive results.

Competition shooting most likely. PRS or field shoots

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Originally Posted by Mick Hunter

Competition shooting most likely. PRS or field shoots

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Nope, just shooting small game out to far as they like :)

I would think this would work for anything a 243 would be suitable for?

I had that rig in my hands last week, pretty impressive unit and top components.

Would you drive a 1947 Humber or a 2024 toyota?

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Originally Posted by stickle7

Would you drive a 1947 Humber or a 2024 toyota?

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yes and yes LOL

Isn't the main difference the twist rate? Put a fast twist barrel in a 243 and there'd be bugger all difference.
Ok there's a bit of refinement in the case geometry and in the 50s when the 243 was introduced Americans were in love with varminting, so light bullets were the preference and twist rates kind of refected that across a whole range of cartridges. The 22 250 started out at 1:14 for example now with the development of interest over time of chucking heavier bullets you can get one in 1:8. Maybe if the 243 had kept pace the creedmore may never have been more than a market ploy to sell new guns.

Isn't the main difference the twist rate? Put a fast twist barrel in a 243 and there'd be bugger all difference.
Ok there's a bit of refinement in the case geometry and in the 50s when the 243 was introduced Americans were in love with varminting, so light bullets were the preference and twist rates kind of refected that across a whole range of cartridges. The 22 250 started out at 1:14 for example now with the development of interest over time of chucking heavier bullets you can get one in 1:8. Maybe if the 243 had kept pace the creedmore may never have been more than a market ploy to sell new guns.
Oh look for some reason it's in sterio

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Originally Posted by Marty Henry

Isn't the main difference the twist rate? Put a fast twist barrel in a 243 and there'd be bugger all difference.
Ok there's a bit of refinement in the case geometry and in the 50s when the 243 was introduced Americans were in love with varminting, so light bullets were the preference and twist rates kind of refected that across a whole range of cartridges. The 22 250 started out at 1:14 for example now with the development of interest over time of chucking heavier bullets you can get one in 1:8. Maybe if the 243 had kept pace the creedmore may never have been more than a market ploy to sell new guns.
Oh look for some reason it's in sterio

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The 22, 6mm, 6.5 Creedmoors are superior to the 308 based cartridges for many reasons

Absolutely the old cartridges can still get the job done but things advance, or we will still be only shooting 250 Savage, 6.5 x 55 & 7 x 57 etc & they all replaced some other cartridges, spears etc...

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Originally Posted by Kiwi Greg

The 22, 6mm, 6.5 Creedmoors are superior to the 308 based cartridges for many reasons

...

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Such as?

What is funny is that the 7x57 , the 6mm Lee navy and the 6.5x55 all had fast twist rate to stabilise their respective long projectiles, and that more than a century ago….

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Originally Posted by Friwi

What is funny is that the 7x57 , the 6mm Lee navy and the 6.5x55 all had fast twist rate to stabilise their respective long projectiles, and that more than a century ago….

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the 22hp savage threw 80grn projectiles with fast twist too.

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Originally Posted by STC

Such as?

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Google it

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Originally Posted by Kiwi Greg

Google it

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"many reasons" why something you are trying to sell is superior, and you cant name a single one? :-)

Tells me everything I need to know, thank you!

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Originally Posted by stickle7

Would you drive a 1947 Humber or a 2024 toyota?

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Id quite happily drive a 1947 anything..

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Originally Posted by STC

Such as?

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I lifted this straight out of the internet:

The 6mm creedmoor case was based on the 6.5 creedmoor case. Which was based on the 30 TC case. The 243 is based on the 308 case.

The advantage of the creedmoor cartridges over their 308 based counterparts is this. Having a shorter case allows you to seat the bullets further out of the case and still fit into a standard magazine. Eliminating some of the space that the long bullets protruding into the case of the 308 based counterparts. Increasing Available space for powder in one way.

The sharper shoulder and straighter contour of the case walls allows increased powder capacity in the shorter case. Also the 6mm creedmoor will have a tighter twist rate to stabilize those heavy for caliber bullets.

"the 22hp savage threw 80grn projectiles with fast twist too."

Close MD but it was 70 gn pills i believe. My old man was a big fan of .22 sav high power in the 50's as a roo shooting rifle (skins for leather) in western Qld. Good penetration without tearing the skins up was his' association.

There is another probable reason for the new "wonderkin" cartridges like the creedmores, and that's to do with ammunition makers. Making heavy bullets to meet part of a market is only going to annoy owners of a slower twist rifle.
I'm certainly not against new things or innovation, the 300 PRC is an excellent example of both in my opinion.