30-30 or .300 BO for subs/suppressed

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I have a 30-30 I’ve really mostly used for range shooting as I use other stuff for hunting. Since I don’t have Trail Boss, it seems like .308 would be a poor choice to develop subsonic loads. Is it worth going the 30-30 route or should I just pony up and get a 300BO? Am I a heretic for being willing to put threads on a Winchester 94?
 
I have a 30-30 I’ve really mostly used for range shooting as I use other stuff for hunting. Since I don’t have Trail Boss, it seems like .308 would be a poor choice to develop subsonic loads. Is it worth going the 30-30 route or should I just pony up and get a 300BO? Am I a heretic for being willing to put threads on a Winchester 94?
A post-1964 Win94? No.
A pre-1964 Win94? Yes.
 
For subsonic thirty caliber you want a faster twist rifling than any factory 30-30 barrel. 300blk barrels are mostly made with rifling that is meant to stabilize longer, heavier bullets. If you shoot a 230 grain out of a 30-30 you might not get it to stabilize and might hit a baffle in an expensive silencer. If you are going to stick with the light weight (say 100 to 150) subsonic the 30-30 is good.

For a dedicated suppressed rifle a bolt action 300blk is an easy off the shelf way to go. I played with it quite abit years back and learned some good and some bad about it but it's a lot of fun.
 
I have a 30-30 I’ve really mostly used for range shooting as I use other stuff for hunting. Since I don’t have Trail Boss, it seems like .308 would be a poor choice to develop subsonic loads. Is it worth going the 30-30 route or should I just pony up and get a 300BO? Am I a heretic for being willing to put threads on a Winchester 94?
Ain't nothing wrong with using 308 for subs. The only thing 300 power outage gives you is stanag mags.
 
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