Pump-action reload

[flamerz14]

singularity's idea is pretty much simple.anyway, I've designed a magazine that has a spring inide it on the end so that it can be used horizontally, like a shotgun's mag.

[jrrdw]

This is a sweat idea, i really like it!!!

planning on doing a lot of pumping then

WTF?

[jackssmirkingrevenge]

Now that I have a working self-contained cartridge to hand, thought I'd take a look at how pump-action shotguns work.

Take a look at the flash animation

A tad too complex for my liking. It would be much easier to make a stack magazine as opposed to a tubular one, but in my book pump action+stack mag is an aberration. The break-open option is looking a bit more appealing...

[spud yeti]

This is a sweat idea, i really like it!!!

planning on doing a lot of pumping then

WTF?

You spelt sweet "sweat" so he was reffering to you sweating when pumping the gun. Just a joke

The idea of pump action is cool because its quite a simple design to get working.

[jackssmirkingrevenge]

The idea of pump action is cool because its quite a simple design to get working.

Not the way real pump action shotguns work tho

[spud yeti]

Ja, thats very true, I just watched the animation, holy wack
But its an easily simplified concept. I wonder why they make it so complex?

[jackssmirkingrevenge]

But its an easily simplified concept. I wonder why they make it so complex?

Manufacturers have no interest in overcomplicating things that would make their products more difficult, expensive and time-consuming to manufacture and maintain. Since the pump action mechanism has been around for over a century, I think it's safe to conclude that it's as simple as it can get.

[spud yeti]

I guess they had to find a place that is in between simplicity, effectiveness, cost and reliability.

[noname]

Or you could go to the How-To section and find a really good animation of a pump action design that would be easy to construct with the right pipe sizes (say, 1/2" Sch 40, 1/2" SDR 13.5, 1" Sch 80, 1" SDR 21).

[spud yeti]

I went to the how-to page, to supply this thread with the link, and can officially say I couldnt find it; please prove me wrong

[noname]

It was there 9 months ago, it should be there now. Hmm, it might have been in the Theories... I'll look through both. Eh, can't find it in How-To's, I'll check the Theories later.
http://www.spudfiles.com/official_pics/ ... r3_med.mov

[PinHead]

I think it all comes down to how you want to load your cartridges; most people assume that with a pump action, you either have them lined up on top of each other, like in a magazine or clip, or lined up in a row, like a tube loader.

The animation above looks like a very good concept. The only problem I see is making sure that the cartridge is actually going to fall thru the port that it needs to every single time, without getting caught up somewhere or needing assistance to get pushed down. I don't know if gravity would be enough by itself.

Currently, I've been tinkering with a design for a pump-action, 6-shot revolver. If I get some better drawings made, I'll show them here.

[jackssmirkingrevenge]

Currently, I've been tinkering with a design for a pump-action, 6-shot revolver. If I get some better drawings made, I'll show them here.

That's a sweet idea, you got me thinking

[PinHead]

That's a bit different than what I had in mind, but still really friggen cool. What is it exactly... I want some more info! I don't really care if someone already beat me to it.

EDIT: Ok, I just googled the site that image came from - apparently it's a bullpup 410. That thing really got me thinking now, too; I never thought of putting the cylinder behind the trigger setup.

[jackssmirkingrevenge]

As far as I know it's a custom one-off, based on the Jackhammer shotgun, but substituting semi-auto recoil operation with manual pump-action.