One Powder for .243AI and 107gr. MK?

[TORCHRIDER]

I understand every rifle is different and powder that is best in one may not work worth a dern in another. However, having said that, if you were to recommend one powder to start building loads for a .243AI - 1/8 twist 26" Shilen - 107Gr. Sierra Match King, which would you recommend?

 

[lightman]

Re: One Powder for .243AI and 107gr. MK?

Take your pick of the slow ones.The 4350's,4831's,RL-22,all are favorites. Pete

 

[bohem]

Re: One Powder for .243AI and 107gr. MK?

I'd take them in the following order

H4831sc - Slow, well suited to the case, very temp stable and consistent
H4350 - Faster than H4831sc, very temp stable and consistent
RL22 - Similar burn rate to H4831sc but this is temp sensitive
RL19 - burn rate is similar to H4350 but this is temp sensitive

 

[shoot4fun]

Re: One Powder for .243AI and 107gr. MK?

My rule is always use H4831SC whenever I can.

I see some guys talking RL25 but I think for the really heavy bullets only.

 

[leadbullet]

Re: One Powder for .243AI and 107gr. MK?

H4831SC all day, everyday.

 

[JCH]

Re: One Powder for .243AI and 107gr. MK?

R17, you will get crazy speed

 

[diriel]

Re: One Powder for .243AI and 107gr. MK?

Can't believe nobody has mentioned H1000 for the 243AI. Then again, H4831sc is real good too.


Gary

 

[vprtoad]

Re: One Powder for .243AI and 107gr. MK?

RL 22 for me ...it is temp sens in extreme heat only....otherwise no problems

 

[TORCHRIDER]

Re: One Powder for .243AI and 107gr. MK?

Thanks for the replies guys. Anyone use the Really slow powders like Retumbo, R25, etc?