94 grains Retumbo shot well in mine with the 175 SGK. 102 grains H-870 is really good but they quit making it. You can extrapolate those loads to the 180. We didn't have the Bergers back in those days. I haven't worked with this one since 1998-99 time frame since it burned up the first barrel in 450 rounds and rebarreld it to another cartridge. I still have the other one I built unfired with a 31" #5 Hart barrel on it. When I get my house finished I may bring it out of mothballs.