Originally Posted by JLA
trailboss loads alot like black powder in that you can just about fill a case up with it and it wont be overloaded. I wouldnt recommend compressing it but a .308 case filled to the top of the shoulder with trailboss and a 180 or 200 gr lead bullet should give you a nice reduced plinker load...
You can't load a .308 case up with Trail Boss and a 200 grain bullet and be anywhere near subsonic. It may be a "reduced" load, but way over subsonic velocities, which is what the topic is concerning.
It only takes around 12 grains of Trail Boss Powder to be right on the line of subsonic/supersonic with a 200 grain bullet. The most common .308 subsonic load I know of (and that has been around for many years) is the following:
10 Grains of Trail Boss powder (OR substitute 8.2 gr. Red Dot W/ similar results)
200 grain Lapua Subsonic Bullet
Large Rifle Magnum Primers
Flash holes enlarged to 9/64"
The end result is one of the more accurate subsonic loads around with a velocity in the 960 fps range depending on your rifle.
As for all the "what's the use of using subsonic rounds in a .308?" questions, there are several uses for wanting to shoot a target without alarming possible surrounding targets or concealing your position. And no, this does not only apply to military snipers or tactical situations. I use a suppressed POF P-308 with an ATN PS-22 Night vision optic for hunting predators and varmints. There have been numerous times when I have been able to take down multiple coyotes or other targets only because they were not scared off by the first shot. It is natural to think these loads do little damage, but it is simply untrue. This is still a 30 caliber 200 grain projectile travelling at almost 1,000 fps., and I have never needed to shoot anything twice. The closest I have come to needing something more powerfull was against some adult wild hogs, and that's just because they are some mean, tough suckers. But then again I have shot these with everything from a 12 guage to a 50 beowulf and double tapped because they were still moving around, so I don't blame the subsonic round for this one.
I have taken a full grown adult female coyote completely off all fours with the round I listed above, and done it in almost complete silence except for the "thump" of the bullet hitting the target. In fact, the targets I hit after the first kill are usually staring at their buddy laying on the ground in confusion (probably wondering why they just jumped sideways and rolled around in the dirt).
Why do you think the suppressor industry has taken off and sold so many suppressors to the public? There are drawbacks to shooting quietly, but the rewards are much greater in my opinion.