Thread: .308 subsonic load development.

Hey chaps I started to have a play with subsonic rounds yesterday.
200gn flat nose lead cast projectiles
Started at 10.5gn of trailboss and worked down to 10.2gn.
Magnum primers.
So at 10.5gn I was still getting 1215fps and at 10.2gn 1120fps. Will have to go lower I'm expecting that it will be 9.9gn-10gn.
I fired 12 rounds and the recoil was bugger all. The best grouping was with the 10.2gn at 50meters. Only issue I noticed was the amount of lead fouling in my barrel.
Here is the group of 10.2gn and a little video to show recoil and sound.
Cheers. https://vimeo.com/197216818


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