243 from 1 in 10 to 1 in 9 1/2. Why?

[willyp]

Why did they change the twist in the 243?
How well would an 85 grain Sierra BTHP shoot out of a 1 in 9 1/2 twist !

[earl39]

To try to handle bullets up to 100 grains.
It should shoot fine.

[wbm]

How well would an 85 grain Sierra BTHP shoot out of a 1 in 9 1/2 twist

Extremely well! The 85gr Sierra HPBT is one of my all-time favorite bullets in the 243. Never had an accuracy problem with them in a Savage rifle.

[GaCop]

Extremely well! The 85gr Sierra HPBT is one of my all-time favorite bullets in the 243. Never had an accuracy problem with them in a Savage rifle.

+1, Georgia white tail are not very big (for the most part). I've taken a number of deer with the 85 grain using neck shots and it's been bang, flop every time.

[jpdown]

Why did they change the twist in the 243?
How well would an 85 grain Sierra BTHP shoot out of a 1 in 9 1/2 twist !

To better stabilize the heavier 100+ grain match and hunting bullets now available. You won't see any problem with 85 grain bullets.

[gotcha]

+1 ...... Remington went through the same dilemma when they introduced the 244 Remington with a 1 in 12 twist. Originally designed as a varmint cartridge with max of 90 gr. bullets but users wanted to use the cartridge for Deer hunting and found it wouldn't stabilize the then available 100 gr. bullets. Realizing their mistake Remington reintroduced the same cartridge and called it the 6MM Remington but, now utilized a 1 in 9 twist. To late to re-capture the market which moved to the .243 WIN. Ironically a case with less powder capacity.