Here is a link that give close to sub-sonic for 300 Win Mag. http://hodgdon.com/PDF/Trail Boss Reduced Loads R&P.pdf...and then, if you want subsonic shots, why use a .300 Win Mag? I mean, these weapons have been built so you can have faster projectiles with more energy - sounds to me like exactly the opposite of what you are looking for...
I only own a 300 winmag and a 223 but the 223 doesnt have a supressor...and then, if you want subsonic shots, why use a .300 Win Mag? I mean, these weapons have been built so you can have faster projectiles with more energy - sounds to me like exactly the opposite of what you are looking for...
I use a Moose suppressor. No its an old Zastava 223 rifle.Is the .223 an AR? if so, a simple barrel change will have you shooting 300 blkout and it will use the same suppressor as your 300wm. Actually even if it is a bolt gun a barrel change will have you shooting 300blkout. it is just a little more difficult to change the barrel in a bolt gun.
BTW-- what suppressor are you using? any 30 cal suppressor should be just fine with shooting .223 through it if you get the barrel threaded to the right pitch or get a good quality concentric adapter.
Huh?!There is NO reason to load subsonic rounds in ANY platform..
I've got plenty of case capacity to push 240's to 1050 in 300 blk out with case capacity to spare. The issue is twist rate and stabilization, not case capacity. The only reason to use trail boss for subs us to fill up an over abundance of case volume (like in the 308 and 300 wm), but it is still not ideal. 300 wm is prob 1:10 twist which prob will not stabilize 220's or 240's at subsonic speeds unless either they are round nose or they are loaded backwards (yes target bullets are more stable flying backwards). I would do a lot of testing before ever attaching your suppressor. Let us know what you find out.With Trailboss, and I am sure other sub-sonic powders, pressure is really not an issue. The nice thing about shooting the Win mag is you have the option of using the heaviest bullets available, 230 Bergers or 240 Sierras, stablization may be an issue at lower speeds though. .308 case capacity makes this tougher. I kind of figured why you were asking about the Win Mag, makes sense to me. Good luck.