IMR4064 in .243 using 107 gn. Sierra's - Recipes Anyone?

[waynewjw]

My books don't show any loads for .243 caliber using IMR 4064 with 107 gn. Sierra bullets - has anyone else cooked up a load? What range of powder?

 

[waynewjw]

Anybody Out There??

So is no one using 107 grain bullets, in this case Sierra's, in .243 caliber??

 

[horseman2]

I depends on your twist.
From Sierra with a Remington 700 and 22 inch barrel and 1 in 9 1/8 twist.
Accuracy Load: IMR-4350/ 39.6grs. 2800fps/ 1863ft. lbs
I used the 105 grain Hornady in on .243 with great success but my current 700 SPS SS does not perform with that bullet.
With 4064, the max load tops out at 2700 fps:
29.4 30.8 32.1 33.5
Probably a 1 in 8 twist would work better.

 

[H4831]

You would need a rifle with a faster twist than 10 inches, to stablize 107 grain bullets.
4064 powder is too fast burning to be anywhere near efficient in a 243 with 107 grain bullets.

 

[JJ-65]

RL-22 and Retumbo are what i use with 107's ,and a 9 twist will work fine.

 

[zuke]

google is your friend.

 

[waynewjw]

Twist

Savage Model 14 with 1:9.25 twist.