Thread: 6 Creedmoor

Originally Posted by Kiwi Greg

Google it

"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!

Originally Posted by stickle7

Would you drive a 1947 Humber or a 2024 toyota?

Id quite happily drive a 1947 anything..

Originally Posted by STC

Such as?

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.