Author Topic: Just wondering ????? (Read 380 times)

jh45gun · « **on:** July 26, 2004, 06:25:13 AM »

Thought about this last night if you shoot muzzle loaders and do not seat the projectile on the powder it is considered a "short start" and is dangerous and may blow up your barrel. So why can you get by with space between the powder and the bullet in a cartridge?

?? Gonna load up some cast using powders like 2400 and unique and I know I will have air space. I know it is safe or the loads would not be published. Just wondering why in a cartridge you can get by with it?

unspellable · « **Reply #1 on:** July 26, 2004, 07:37:16 AM »

It's not whether you have a muzzle loader or cartridge arm. The difference is between smokeless and black powder. When loading cartridges with black powder no air space is allowed, just as with a muzzle loader.

If you could load smokeless in a muzzle loader you might be permitted a small air space just as in a cartridge. Of course, one of the reasons (among many) you don't use smokeless in a muzzle loader is that it would be neccesary to seat the bullet to the exact same position each time or you would have very erratic pressures.

Mac11700 · « **Reply #2 on:** July 26, 2004, 07:48:20 AM »

With the new Savage muzzle loader...you can load both smokeless and black powder....

Mac

New Hampshire · « **Reply #3 on:** July 26, 2004, 11:41:48 AM »

Blackpowder is more like an explosive (and I believe the packaging carrys some Fedral warning as such.) Smokeless is more of a flamable. A shortstarted projectile in a ML acts more like a stuck projectile because of the almost immediate pressure build up where as smokless tends to "eat itself up" so to speak. Its like a chain reaction which is why you get the leeway you do (and leeway it is, there are still horror stories of extremely small charges in large capacity cases blowing up.) BP has the pressure spike at the beginning of the burn and smokless builds up to a pressure spike.
Hope that clears it up.
Brian M.

unspellable · « **Reply #4 on:** July 26, 2004, 12:00:27 PM »

The Savage is the exception that proves the rule.

Glanceblamm · « **Reply #5 on:** July 29, 2004, 04:50:43 AM »

When you are shooting modern, the brass takes all of the punishment. If everything is ok the brass expands to grab the chamber walls and creates a pressure seal.
If the chamber is just a bit too long (HEADSPACE) You will see a bright ring as in incipid separation. Might even see some blowback if too extreem.
If the cartrige is fired with no support (such as out of a Vise) the brass will come apart right now.
Again: The brass takes all the punishment. Thats why we pay close attention to it when reloading