Josh
Well-Known Member
I have shot the HG #68 in 45's for a while and by far it is one of the most accurate designs ever made for that cartridge. That being said I wanted to scale it down to the 9mm bore, so I did the math, the 9mm is 79% of the diameter of the 45 cal. Knowing this I copied an HG #68 design (from my previous drawing of the HG #68) and then multiplied every number by 79% with the exception of the nose diameter, below is the result. I assumed that the bullet would come out slightly heavier than 100 gr, I assumed about 110-115 gr. Do any of you pistol shooters see any reason this wouldn't work in the 9x19 and even the 380?