.243 1-10 twist suggestions for bullet weight to start?

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cdn1canhunt

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Friend just bought browning x-bolt .243 1-10 twist just looking for opinions on a good starting weight for bullets. This rifle will be used with coyotes as the intended target. Would like to stick to lightish bullets 65gr, 75gr ?? 80gr as max. I shoot a savage with 1-9.25 twist thinking he would get along fine with same loads in 1-10 twist ?

Suggestions ?
 
with fast twist you can over stabalise a bullet and cause a wobble. lighter bullets you could go with 1in 12 twist and would be ok
 
You will be ok up to 95gr and some 100gr with a 10 twist as long as they aren't the long VLDs. Only issue you'll have with a fast twist and light bullets is if you're pushing them hard and strip the jackets off. This won't be an issue with your 10 twist. IMO
 
I have had three different .243 rifles, two with 1 in 10 twist and my new Savage has a 1 in 9.25 twist rate. Pick the bullet you want to shoot and give it a try, my last time out to the range with it I was shooting the Hornady 87 grain VMax and getting very good groups.

243 Win Cartridge Guide
High-Velocity 6mm for Long-Range, Varminting, and Tactical Use
http://www.accurateshooter.com/cartridge-guides/243win/

"Hunting Bullets
Nosler 6mm Partition BulletFor varminters, the Sierra 70gr Blitz-King and Hornady 75gr V-Max offer a good combination of accuracy, BC, and explosive impact on target. The Berger 80gr Varmint bullet is exceptionally accurate but doesn’t impact as explosively on target. For coyotes, the 80gr Nosler Ballistic Tip and Hornady 87gr V-Max both buck the wind pretty well and hit hard. For small to medium-sized deer, Sierra recommends its 85gr HPBT GameKing for soft-tissue shots out to 200 yards. Where deep penetration and better weight retention is required, you need bullets like the Nosler 95gr/100gr Partitions, Remington 100gr Core-Lokt? SP, or the Sierra 100gr SPFB Pro-Hunter."

The Importance of Twist Rates
http://www.shootingtimes.com/ammo/ammunition_st_twistrates_200809/

"Though the 6mm Remington’s larger case capacity endeared it to handloaders, the .243 Winchester kicked its tail. The lackluster success of the 6mm Rem. can be directly attributed to its 1:12 twist rate that would not stabilize the 100-grain bullets deer hunters coveted. Heck, it didn’t even do a good job of stabilizing Remington’s 90-grain factory load.

Winchester’s .243, however, had a 1:10 rate of twist, and it did a marvelous job of stabilizing 100-grain deer bullets as well as lighter varmint bullets. By the time Remington changed to a 1:9 twist rate, the damage was done. The .243 Win. dominated the 6mm market and still does to this day."
 
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