Trail boss in .308

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Glockula

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Is there any load data anyonw knows of using Trail boss and subsonic .308 winchester rounds? Would it be possible with a 180 or 200 gr? If the answer is no then great. I just want to know. That would be good for the suppressor.
 
Is there any load data anyonw knows of using Trail boss and subsonic .308 winchester rounds? Would it be possible with a 180 or 200 gr? If the answer is no then great. I just want to know. That would be good for the suppressor.

Yes, you can use it. The problem with shooting subsonic bullets is that you need something big (generally) and many 308's don't have an adequate twist to stabilize them. I have a dedicated subsonic bolt action. I shoot magnum primers with the primer pockets drilled to 1/8". I use Trail Boss and 220 grain bullets. The twist on the rifle is 7.5 inches.
 
Thanks for the replies.

Why magnum primers with the flash holes drilled out? So little powder in the case it ensures reliable ignition?
 
I didn’t change the flash hole on my brass and used Winchester primers for standard or magnum loads.
 
Not very productive use of time or components though I can get pretty much the same results with 147’s in a 9mm carbine for less cost per round.[/QUOTE]


Yes, but it would be hard to get a 9mm 147 through a .30 cal suppressor!
 
Is there any load data anyonw knows of using Trail boss and subsonic .308 winchester rounds? Would it be possible with a 180 or 200 gr? If the answer is no then great. I just want to know. That would be good for the suppressor.
Look up Trailboss. They give a range of loads for different calibers, and give you a method for developing loads. I'm loading subsonic in 308 with 8.3 grains of TB behind a 165 Ballistic Tip. I was afraid to go heavier with the twist in my rifle. It's quiet, and no recoil.
 
I have had good accuracy with projectiles as heavy as 190gr Bergers in my 1:10 twist Savage 10 FPSR. I dont think stabalizing heavy bullets is an issue. I am going to do some capacity tests with my projectiles per hodgdon and load some.

Thanks for all the feed back. I will report the results.
 
Thanks for the replies.

Why magnum primers with the flash holes drilled out? So little powder in the case it ensures reliable ignition?

Trying to get more consistent ignition. My SD dropped a bit when I did it. It wasn't my idea. I read it on a forum somewhere.
 
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