Quick question....

Trapp · April 17, 2005, 08:03 PM

What does a gas check do? I saw some for sale the other day and didn't ask, now I want to know.........

Dogjaw · April 17, 2005, 08:11 PM

A copper or brass cup used to prevent hot high pressure powder gases from deforming the base of lead bullets.

yorec · April 17, 2005, 11:50 PM

They can also help scrape a little of the lead fouling left in a barrel by soft bullets as they puch 'em out. Minimal help, but help they do!

LHB1 · April 17, 2005, 11:58 PM

Gas checks can only be fitted to cast bullets designed for them. Such bullets have slightly rebated "heels" to allow gas check to slip on. Some gas checks crimp onto the bullet and some just slip on. I have never found the need for them on pistol bullets, even on full power .44 Mag loads at 1425 fps, and they supposedly raise pressures (3000-5000psi?).

Good shooting and be safe.
LB

cheygriz · April 21, 2005, 05:28 PM

I have been using them on any load above 1300 fps, whether rifle or pistol. They may not be necessary at velocities that low, but having them on gives my a warm fuzzy feeling.

Russ5924 · April 21, 2005, 07:16 PM

They say don't push the lead bullet much over 900 fps or you will get leading.I loaded some one time 18 rounds and the gun was fouled with lead.

Edward429451 · April 21, 2005, 07:51 PM

I have two gas check moulds and use them regardless because its a gascheck design...from reading some of you guys posts...you don't always use them on a GC designed bullet unless your pushing it real fast?

Am I wasting my gaschecks? 44 Special wouldn't need them at the velocities I load too? (Midrange for my Bulldog)

CaptainRazor · April 22, 2005, 07:38 AM

Quote:

I have two gas check moulds and use them regardless because its a gascheck design...from reading some of you guys posts...you don't always use them on a GC designed bullet unless your pushing it real fast?

That would be true for me, I haven't used gas checks for years and I have a mould (.358SWC) that is a gas check bullet design mould.

Quote:

Am I wasting my gaschecks? 44 Special wouldn't need them at the velocities I load too? (Midrange for my Bulldog)

I wouldn't think you need gas checks for 44 Special. The velocity is low enough, leading shouldn't be a problem. The only thing that they might improve would be accuracy.

sundog · April 22, 2005, 08:16 AM

Edward, yup, save your gas checks in 44 Special, even light and midrange 44 Mag. Get a plain base boolit like the Ly or RCBS Keith design or even better a Lee 200 RF in a 6-cavity. I've grown rather found of the Lee 6 banger as it shoots good and you can make a freakin' mountain of decent boolits in VERY short order. With straight WWs mine weigh in at 208 grains. sundog

btw, I shot a CAS match last month, first time in about two years, and those Lee 200 grainers did a FINE job in a couple Bisley Vaqueros and a Rossi 92.

Edward429451 · April 22, 2005, 09:28 AM

Thanks guys. Gaschecks aren't getting any cheaper and they seem tyo go fast so thats good to know.

No I suppose I'll load some identical loads with and without checks to compare the accuracy with. I have two gc moulds in 44, a Lee 250 SWC and the Lyman 300 gc. I also have the 245 Keith plain base and the 180 WC. 44's are such a great caliber to load for.

April 17, 2005, 08:03 PM	#1
Trapp Senior Member Join Date: December 5, 2004 Location: KTN Posts: 1,221	Quick question.... What does a gas check do? I saw some for sale the other day and didn't ask, now I want to know......... __________________ HDR Ban!? It's a shame all of my guns sank with my boat last week... Time to catch up.....like mayonnaise

April 17, 2005, 08:11 PM	#2
Dogjaw Senior Member Join Date: October 6, 2001 Location: S.W. Michigan Posts: 560	A copper or brass cup used to prevent hot high pressure powder gases from deforming the base of lead bullets. __________________ There are three kinds of men: 1) The ones that learn by reading. 2) The few who learn by observation. 3) The rest of them have to pee on the electric fence and find out for themselves..........

April 17, 2005, 11:50 PM	#3
yorec Senior Member Join Date: February 2, 2000 Location: Wyoming Posts: 2,328	They can also help scrape a little of the lead fouling left in a barrel by soft bullets as they puch 'em out. Minimal help, but help they do! __________________ What part of "... shall not be infringed..." don't you understand?

April 21, 2005, 05:28 PM	#5
cheygriz Senior Member Join Date: May 11, 2002 Location: high up in the rockies Posts: 2,289	I have been using them on any load above 1300 fps, whether rifle or pistol. They may not be necessary at velocities that low, but having them on gives my a warm fuzzy feeling. __________________ If you think a mighty military force is expensive, wait 'til you see what a weak one costs.

April 21, 2005, 07:16 PM	#6
Russ5924 Senior Member Join Date: February 18, 2005 Posts: 1,874	They say don't push the lead bullet much over 900 fps or you will get leading.I loaded some one time 18 rounds and the gun was fouled with lead. __________________ Russ5924

April 17, 2005, 11:58 PM	#4
LHB1 Senior Member Join Date: March 25, 2005 Location: Houston, TX Posts: 1,545	Gas checks can only be fitted to cast bullets designed for them. Such bullets have slightly rebated "heels" to allow gas check to slip on. Some gas checks crimp onto the bullet and some just slip on. I have never found the need for them on pistol bullets, even on full power .44 Mag loads at 1425 fps, and they supposedly raise pressures (3000-5000psi?). Good shooting and be safe. LB

April 21, 2005, 07:51 PM	#7
Edward429451 Junior member Join Date: November 12, 2000 Location: Colorado Springs, Colorado Posts: 9,494	I have two gas check moulds and use them regardless because its a gascheck design...from reading some of you guys posts...you don't always use them on a GC designed bullet unless your pushing it real fast? Am I wasting my gaschecks? 44 Special wouldn't need them at the velocities I load too? (Midrange for my Bulldog)

April 22, 2005, 08:16 AM	#9
sundog Senior Member Join Date: November 22, 1999 Location: Green Country, OK Posts: 782	Edward, yup, save your gas checks in 44 Special, even light and midrange 44 Mag. Get a plain base boolit like the Ly or RCBS Keith design or even better a Lee 200 RF in a 6-cavity. I've grown rather found of the Lee 6 banger as it shoots good and you can make a freakin' mountain of decent boolits in VERY short order. With straight WWs mine weigh in at 208 grains. sundog btw, I shot a CAS match last month, first time in about two years, and those Lee 200 grainers did a FINE job in a couple Bisley Vaqueros and a Rossi 92. __________________ safety first

April 22, 2005, 09:28 AM	#10
Edward429451 Junior member Join Date: November 12, 2000 Location: Colorado Springs, Colorado Posts: 9,494	Thanks guys. Gaschecks aren't getting any cheaper and they seem tyo go fast so thats good to know. No I suppose I'll load some identical loads with and without checks to compare the accuracy with. I have two gc moulds in 44, a Lee 250 SWC and the Lyman 300 gc. I also have the 245 Keith plain base and the 180 WC. 44's are such a great caliber to load for.

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