I have a project gun chambered in 223.
It has the f-class 7.97 5c Broughton barrel in 30 inch length.
I am not getting the velocities I was hoping to achieve with the longer barrel and bullet weight / powder combo.
I am using Varget working up loads from 22.5 grains up to 24 grains behind 80 grain berger vlds I am only getting 2757 fps avg with the 24 grains and the programs say it should be over 2900 fps.
I am going to try IMR 4895, it is suppose to give me 2955 fps.
My question is could the barrel length be actually slowing down the velocities.
Any bolt gun shooters out there shoot this long a barrel?
thanks
It has the f-class 7.97 5c Broughton barrel in 30 inch length.
I am not getting the velocities I was hoping to achieve with the longer barrel and bullet weight / powder combo.
I am using Varget working up loads from 22.5 grains up to 24 grains behind 80 grain berger vlds I am only getting 2757 fps avg with the 24 grains and the programs say it should be over 2900 fps.
I am going to try IMR 4895, it is suppose to give me 2955 fps.
My question is could the barrel length be actually slowing down the velocities.
Any bolt gun shooters out there shoot this long a barrel?
thanks