[m&p45acp10+1]

I looked into the same thing myself recently, and started a thread on here. The group consensu was if not shooting out of a revolver then gas checks would be needed to prevent the gas port from clogging. If that happens it is a pain the posterior to clean out. I decided to just bulk order jacketed bullets. If you are loading for something like a Ruger Black Hawk then go witout the gas checks, and keep the velocity down.