Subsonic load & gas tube question

[Mousehouse]

Thanks for the info. The only bad thing is they are out of the carbine gas tubes right now. I will try back in a week or two.

Where is a good place to get 220 grain 30 caliber bthp bullets at a good price? Midway USA has them for around $30 per 100.

Has anyone used IMR 4895 powder in their 300 whisper loads? Just wondered. That is the powder I use in 90% of my rifle loads and would be nice since I have a lot of it.