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how long does the powder burn?

 
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  #8  
Old 01-27-2009, 10:42 PM
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Re: how long does the powder burn?

I believe it also has to do with what powder you have in the case. Stick powder burns pretty easily compared to ball powder. Its MUCH easier to ignite so its realistic to believe that the last few granuals of powder would be easier ignited with stick powder while with ball powders, the last bit of powder will likely not burn because its much easier to ignite.

As far as the guy with the 257 Wby. I believe he was blowing burning powder out the muzzle which resulted in the burns on the stock.

I have shot alot of handgun over the years, many of them big single shot specialty handguns. I once had an XP-100 that was an original 221 FB that someone had rechambered to 223. Still had the 10 3/4" barrel on it. Shooting that thing in low light conditions with a fast burning powder would produce a noticable orange plumb at the muzzle. Using a slow burning powder would produce a fireball that one had to see to believe.

Stick powders also produced less muzzle flash then ball powders......

The brighter the muzzle flash would lead me to believe that there is more flame at the muzzle instead of gas......

As far as engineers go. I went to school to be a mechanical engineer. Did not suit me so I went other directions but many of my professors were so narrow minded that if you did not do things their way, they were simply wrong. Even though there could easily be a dozen ways to come out with the exact same results. Elitists are a funny bunch!! LOL

I certainly do not know this answer with scientific certanty but I get a kick out of some that are offered solid test results and still tell you it will not happen.....

Kind of like a Democrat telling you that spending a trillon dollars is THE ONLY way to turn the economy around. We all know thats CRAP. Another time for that rant though.

A Speer engineer once told me that their 22 cal 50 gr TNT would not survive velocity over 3500 fps. Finally after I sent him about 30, 1/2" three shot groups from my 22-250 with this bullet launched at 3750 fps he finally admitted that it MAY be possible but highly unlikely!!! LOL

Funny bunch. Seems they tend to just want to tell us things DO NOT happen instead of try to figure out why in fact they do happen.
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Kirby Allen(50)

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  #9  
Old 01-27-2009, 11:22 PM
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Re: how long does the powder burn?

i remember seeing a 600 or 660 mohawk chambered in 350 mag shoot at night once. impressive fire ball to say the least. would it be safe to say you could "guesstimate" the correct burning rate for your barrel length/bullet/powder combo by the amount of flame when it was shot at night?

i've worked in engineering most of my life. i'm not a degreed engineer, but i've worked with them quite a bit. like most occupations i guess. some are good.
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  #10  
Old 01-28-2009, 09:45 AM
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Re: how long does the powder burn?

There will always be some muzzle flash with a bare muzzle no matter what powder you use.

Some powders produce a brighter flash as well even with same burn rate but it is clear that some powders burn more completely in a give bore and barrel length then other powders.

I also think that with most conventional chamberings, I would say 100% of the powder is burnt in the barrel. Its only in the extreme cases that us nuts think up that will present this occurance.
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Kirby Allen(50)

Allen Precision Shooting
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Farther, Faster and Flatter then ever before.

Web Page: www.apsrifles.com

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  #11  
Old 01-28-2009, 10:20 AM
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Re: how long does the powder burn?

Buffalo Bore loads there handgun ammo with a low lash powder and it does indeed cut down on the muzzle flash even at top end loads.
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  #12  
Old 01-28-2009, 01:49 PM
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Re: how long does the powder burn?

I believe they use a graphite or similiar coating on the powder and when increased, it reduces the flame to some degree.
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Kirby Allen(50)

Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.

Farther, Faster and Flatter then ever before.

Web Page: www.apsrifles.com

allenmagnum@gmail.com
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