.308 SubSonic Load Help

[dimecovers3]

I have a Remington 700 with a suppresor and Gen III nightscope and I have ordered from two different companies a box of 220 grains that were supposed to be subsonic, but neither were. The noise level was about like a .17HMR Does anybody know a reloading recipe for a .308 that does not involve a filler that would clog up the baffles. Thanks

 

[climber]

Go to the forum section here. http://www.silencertests.com/
They have some load data for subsonic .308.
Also this site has many pages of data on silencers and subsonic load data. http://guns.connect.fi/gow/QA1.html