Shellpicker

I am loading 6.2 grains of VVn340 under this bullet. The accuracy is great but I have a problem. They won't fit in my Bar-Sto barrel in a G30. Work fine in the Kimber but won't go into the G30. They fit the case gauge just fine klinking in and dropping out without any problem. They really jam in the G30 though and I have to shorten them to 1.230 to make them fit. Will this cause a pressure problem?

I am having difficulty in finding data using VV340 and Precision 230 Grain RNF bullets. I am starting at 6 grains but would like to know if anyone else is using coated lead Round nose flat point bullets.