243 win 28” barrel powder advice

[Goose71]

Getting a 243 win barrel 28”. Looking to shoot 70-90 grain tips. Haven’t used a long barrel would I use a bit slower powder because of the longer length barrel. I’m accustomed to 22-24”. 1-10 twist I usually use Imr 4350 or h 4350 and at times rl15 or VARGET.

 

[rayporter]

re22 wont work with 70 gr bullets very well. and may not work with 85 gr.
4350 is great

 

[ID_Matt]

H4350

 

[mullmann]

You have to look at projectile weight for powder selections. Longer barrel will just give more speed to a certain point. Try the H4350 and imr4350 and it should be fine.

 

[ericwh]

According to Gordon's Reloading Tool, using 90gr eld-x:
H4350 is ~88% case fill and ~3280 fps max
Staball 6.5 is ~93% case fill and ~3165 fps max
Hybrid 100V is ~98% case fill and ~3175 fps max

 

[ericwh]

Ramshot Big Game - 89% fill, ~3270 max
Ramshot Hunter - 98% fill, ~3300 fps max

 

[B23]

RL26 and RL17 are probably going to be a couple of your top performers with regard to velocity but RL16, RL23, and H4350 should do well for you too.

 

[orelkaddict]

Depending on what twist you'll be using I'd look really hard at heavier pills. I'm throwing 108's out of my 26 inch 243 rite at 3100. I know the old 243 isn't as cool as some of the newer calibers available but it's still kicking ass