I was reading where someone said to only use flat nose boolits in tube mags. I have just purchased a 44 mag. Lever gun.they specifically said not to use round nose. I was looking at my 240 gr. round nose & it didn’t look like the nose was pointed enough to detonate a primer, so, I primed a case &took a dummy round ( no powder or primer) and set it over the primer on the case & proceeded to hit it with a plastic hammer. I never detonated the primer though I drove the boolit in the dummy round into the case. Now, I am not saying it is 100% safe for everyone to do this & everyone should use their best judgment.BUT, this is what I found.