243 win-1 in 9 1/2 twist ?

[willyp]

Why did Savage make the 243 in this twist instead of a 1 in 10 ?

[82boy]

Because a faster twist works better with heavier bullets. Just because Remington has a 1 in 10 does it doens't mean that it is right.

[Blue Avenger]

because people expect it to shoot bullets in the 55gr to 90gr range, not 70gr to 100gr

[helotaxi]

I thought that Remington went to using a 1:9 for the .243 so they could use the same blank for both .243 and 6mm Rem. Since they only expand the bullet options, faster twist barrels are becoming more and more common.

[JackinSD]

The Remington .243 that I bought about 3 months ago for my dad is a 9 1/8 twist.

[darkker]

I think you have that backwards there Blue....

[Cycler]

Because a faster twist works better with heavier bullets. Just because Remington has a 1 in 10 does it doens't mean that it is right.
When they first introduced the .244 Rem, they used a 1:12 twist that woulodn't stabilize 100 gr bullets because they thought the .244 was just a varmint round. Winchester used a 1:10 twist for the .243 so it could be both a varmint and deer round and dominated the market. After that initial failure, Remington renamed the .244 the 6mm Remington and went to a 1:9 or there about twist but never really made up the loss in market share. The 6 mm rem is potentially a slightly more powerful round than the .243 but no one seems to care.

[helotaxi]

The 6mm Rem also doesn't fit well in every maker's short action, just like the 7x57 Mauser round that it's based on. That doesn't help popularity either. Us Savage shooters are blessed with a very generous magazine length in a short action rifle.