[Boone]

I have a Ruger Ultralight in 257 Roberts. I want to shoot 100 gr. partitions in it if I can get it to group. Anybody got any pet loads for any 100 gr. bullets. Please post them for me thanks.

[samuel]

43gr,H380,for about 3000fps from a 24" barrel.Pretty accurate.Work your way up but this is just under max. ,,,sam.

[runfiverun]

rl-19 works fine for me in 100 and 120 bullets.

[Boone]

Thanks guys, I will look at these powders and loads.

[Blackrock]

I have used both IMR 4831 and Rel 15 with great results in the exact same rifle.
I use the IMR 4831 with a Hornady 117g bullet and Rel 15 and a 75g Speer bullet.

[Boone]

Thanks BR, if it works in yours maybe it will work in mine.