Instantbacon
Member
- Joined
- Jul 8, 2008
- Messages
- 22
Anyone know if the 147 grain 9mm offered by doubletapammo.com is still considered subsonic? It is barely over the speed of sound, and I am worried it may suffer accuracy for going subsonic shortly after leaving the barrel. I want to get some but wasn't sure because I would like doubletap because the increased velocity will help expansion, but if its above sonic speed I dont want it to drop below that too quickly! Also, I have a springfield xd 9 in the 4" barrel length