Well-Known Member
Do hornady do a 100gr in .243?? My rifle shoot 80gr gmx really well.

Yep they currently do a 243 100gr sp and btsp. I use both and they shoot and perform very well but usually require slower powders eg Viht N160 or equivalent. As for your 80gr bullet, I reckon the optimal weight is around 85gr and if I am honest I get better results from my sierra 85gr than any other 100gr bullet.

As an aside, be aware that Hornady like most US sourced gear can be a little thin on the ground and their prices also seem to be creeping up so keep supply in mind if developing loads.