gas checks, if i make them any taker's?

[mooseman1]

i'm debaiting on getting the gas check making unit, but i would have to sell afew thousand in order the justify the cost.any taker's say at $25 a thousand plus shipping?they would be made of .010-.012 aluminum.

 

[thebigslide]

Any particular sizes you're limited to? If you can make some .45s, I'll take a couple thousand.

 

[mooseman1]

i'll have too look in too that but 45 is what i would be using myself,so yea it would be in 45cal

 

[NorthernCX]

I'd likely buy a thousand or so also... unless I'm looking in all the wrong places, finding things like that through the usual suspects is spotty, if not impossible.

But, not knowing anything on the matter, how well would aluminum checks work?

 

[hk33ka1]

Are you using the Freechex maker? Lots of info on these at cast boolits forums

http://www.youtube.com/watch?v=7GNCVcD4DmE

Here's a video of it in action

 

[mooseman1]

yea i was toying with the idea of getting a freechex tool,but i'm not shooting enough to justify one just for me, but if a few of you guy's would be game in supporting me, then why not?

 

[XXXXX]

Wow making 1000 of those would suck. Consider charging more

 

[donor]

I could use 1k of 30 cal and 2k of 8mm.

 

[mooseman1]

there's a roof shop close by i'm thinking about getting my aluminim from there , but they run 22 guage and i need stuff around .010-.012 inch's think anybody know anything about this?how thick is 22 guage?

 

[mihasic]

I'm not sure aluminium checks would be ok. Aluminium is always covered with the oxide, and aluminium oxide - Al2O3 - it's what they use to sharpen knives. Not the best thing to pass through the bore.

 

[mooseman1]

there's alot about this on cast boolits,there it sound's like aluminium is not a problem.

 

[Rutger]

What are gas checks?

 

[iconfig]

there's a roof shop close by i'm thinking about getting my aluminim from there , but they run 22 guage and i need stuff around .010-.012 inch's think anybody know anything about this?how thick is 22 guage?

22 gauge is way too thick (0.025) you need 28, 29 or 30 gauge ( 0.0126, 0.0113, 0.010 )

 

[zuke]

Here's a link for metal gauge's.
http://www.unc.edu/~rowlett/units/scales/sheetmetal.html

 

[ben hunchak]

Gas checks are like a cork, they prevent bad gases from passing...see also "flatulence".

 

[hk33ka1]

Gas checks are a cup typically made of copper that is seated on the bottom of a cast bullet (that is of a type made to accept gas checks). The idea is to seal the burning gases of the powder from the base of the bullet. Some also think it forces the bullet to lock into the rifling better so it spins instead of sliding down the barrel. Also they may help wipe any leading out of the barrel as well.

These checked bullets are usually used on faster handgun loads and most modern and faster rifle loads.

 

[Rutger]

Ah, I see. So they are used to allow cast bullets to be used in modern rifled firearms?

Gas checks are a cup typically made of copper that is seated on the bottom of a cast bullet (that is of a type made to accept gas checks). The idea is to seal the burning gases of the powder from the base of the bullet. Some also think it forces the bullet to lock into the rifling better so it spins instead of sliding down the barrel. Also they may help wipe any leading out of the barrel as well.

These checked bullets are usually used on faster handgun loads and most modern and faster rifle loads.

 

[thebigslide]

Ah, I see. So they are used to allow cast bullets to be used in modern rifled firearms?

Close. Cast bullets can be used in 99% of modern firearms. They will need to be slowed down though. Gas checks increase the maximum pressure you can load a cast bullet to.

They help with three problems.
Normally, an (even ever so slightly) undersized bullet will allow gasses to pass around the bullet and the hot gasses erode the sides and base of the bullet. The lead vapour deposits on the barrel and that's what is known as 'leading'. The gas check acts like a plunger underneath and improves the seal.

Lead is also soft enough that if you load hotter than a particular pressure, the force is enough to deform the bullet and allow gasses past the bullet. This causes leading just as above. Since the gas check is much harder than lead, the pressure ceiling is increased and you can push cast bullets faster.

Third, no matter how good your lube is, cast bullets will always leave a lead residue on the bore. Gas checks 'wipe' the bore after the bullet passes and decrease the amount of cleaning needed.

 

[mooseman1]

Close. Cast bullets can be used in 99% of modern firearms. They will need to be slowed down though. Gas checks increase the maximum pressure you can load a cast bullet to.

They help with three problems.
Normally, an (even ever so slightly) undersized bullet will allow gasses to pass around the bullet and the hot gasses erode the sides and base of the bullet. The lead vapour deposits on the barrel and that's what is known as 'leading'. The gas check acts like a plunger underneath and improves the seal.

Lead is also soft enough that if you load hotter than a particular pressure, the force is enough to deform the bullet and allow gasses past the bullet. This causes leading just as above. Since the gas check is much harder than lead, the pressure ceiling is increased and you can push cast bullets faster.

Third, no matter how good your lube is, cast bullets will always leave a lead residue on the bore. Gas checks 'wipe' the bore after the bullet passes and decrease the amount of cleaning needed.

Thank you for explaining that , you saved me alot of typing ,as for using aluminim as long as it's not exposed to direct moisture and sunlight it's not bad ,look at all the pop and beer can's layin around how badly are they corroded on the inside?

 

[Cactus]

I would take a thousand or two 30 cal checks.

Cactus