.243 Win. 100 grain loads.

In a 18.5" 1 in 9.125" twist barrel. Stable or no? Will be handloading, specifically Sierra 100 grain ProHunter (I have a supply).

Also, if you handload, what powders do you prefer?

Will be using on everything from raccoons to deer and hogs.

http://www.shilen.com/calibersAndTwists.html

Shows to work.

H-4350 has been a go-to powder for .243 for a long time. There may be other good options to add to the list of possible powders.

Awesome!! Thanks for the heads-up on the site.

http://riflebarrels.com/calibers-and-twist-rates/

Here's the other one. It also shows your twist rate to be fine. Scroll down.

My 24" 9.25 twist Savage Predator grouped 105 Amax at Max load of H4350 1/2" at 100. I think the Prohunter will stabilize even better. Haven't got to shoot it further than that yet and as of yesterday it is now a 20" threaded barrel so hopefully results will be the same.

At 100yds I group right at moa with 40gr of IMR4350 and 100gr interlocks in the kids CVA compact hunter 243. 20" barrel, believe it is 1/10 twist.

Either of the 4350s is usually a high percentage starting place. I have one 243 that loves IMR4350 with 100 grainers. Another 243 much prefers 4320. You never know til you try.