300 blk gas systems

[Kimber45 3]

Howdy all. OK getting into my 300 BLK build and I had some questions about gas tube size. Iam looking at a Satern 14.5 barrel with the carbine gas system. I will only be running supersonic ammo unsuppressed. Iam a little confused because Ive read that to make it run with a carbine system I need to increase the gas port size... and that the pistol gas is better.....less problems. Is that for only shorter barrels running a suppressor. Someone please explain this to me.... thanks

[T Bill 649]

Running a 16" carbine with a lo pro gas block. No problems with sub or super hand loaded ammo.  Some are having problems, but, I feel it maybe mismatched springs and buffers.  Started light on spring and buffer and worked up to where it cycles fine. Have heard that .110 is prime for 16" gas port size.  That is for informational purposes only.

 

For the same reasons you prefer a mid-length over a carbine in 5.56, I believe a carbine over pistol in 300BLK.

[Kimber45 3]

Thanks T bill what springs and buffer system are you using for your BLK? Iam running a JP performance action spring and a Spikes ST-2T buffer in my mid and carbine gas systems they work really nice. Do you think that set up would work well with the 300 BLK? Thanks