I was told recently, by a very "smart" person that using extruded powder will increase the wear in your barrel. He recommends using only ball powder why "cause its round" damn why didn't I think of that.

Well ; When I asked an extremely brilliant scientist what the most significant 20 Th. century achievement was other than Nuclear fission .

He replied the Ice chest !. What ?.
The Ice Chest Ken ; Think about it for a moment he said .

When you put something cold in it , it stays cold !.
When you put something hot in it , it stays hot !.
Now how does it know ?. It has No moving parts so HOW does it know ??.

My question to you ( Rolland ) how does the Smart person know ?.

What would give one this conclusion ?

Shoot Straight Know Your Target . ...

I "think" and really I am assuming now that he believes that do to the sharp edges on the extruded powder it will erode the bore as the particles pass, the ball powder, well it just rolls down the barrel.
He has came up with some other theorys but has more to the meaning of his life than anything to do with guns.
Now that you brought that up a thermos does the same thing

quote:

Originally posted by Rolland:
I was told by a very "smart" person that using extruded powder will increase the wear in your barrel. He recommends using only ball powder why "cause its round"

Did you get a good look at his car? I'll bet he had an Obama bumpersticker too!

From everything I have read, what he told you was correct. Notice I said "read." I have never run any sort of test and do not personally know anyone who has real world experience testing it. I have read things written by folks with emperical data, and they said ball powder reduced barrel life.

I would love to see someone run a controlled test to see what happened. Maybe it is true, maybe it isn't. I sure don't know myself

One thinng I do know is that i am in the camp that barrels wear out due to CORRISION and not EROSION. If ball powders burn hotter, the CORROSION is accelerated. from what I have read, ball powders do burn hotter, so it would not surprise me at all if ball powders really do wear out a barel sooner than extruded powder.

edited to add: And for those wondering, no, I do not have an Obama sticker on the bumper of my unit

quote:

Originally posted by Dr.K:
Well ; When I asked an extremely brilliant scientist what the most significant 20 Th. century achievement was other than Nuclear fission .

He replied the Ice chest !. What ?.
The Ice Chest Ken ; Think about it for a moment he said .

When you put something cold in it , it stays cold !.
When you put something hot in it , it stays hot !.
Now how does it know ?. It has No moving parts so HOW does it know ??.

My question to you ( Rolland ) how does the Smart person know ?.

What would give one this conclusion ?

Shoot Straight Know Your Target . ...

Reminds me of two Cajuns that show up on a bridge to fish off it one morning. One shows up with a thermos. The other Cajun ask's the 1st one
"what's that?"
"Well, it's the latest greatest thing to ever be invented. It's called a thermos. I found it at store last night. The salesman told me you can put all kinds of things in there and it keeps hot things hot and cold things cold."
"Whatcha got in it anyway?"
"I've got our lunch in here. For lunch we're gonna have two steaming hot bowls of gumbo and for dessert I put in two popsicles."

Terry

The Dewar flask (Thermos bottle) was invented by Sir Charles Dewar in the nineteenth century.

quote:

Originally posted by vapodog:

quote:

Originally posted by Rolland:
I was told by a very "smart" person that using extruded powder will increase the wear in your barrel. He recommends using only ball powder why "cause its round"

Did you get a good look at his car? I'll bet he had an Obama bumpersticker too!

Vapo!

There is a theory that the flame temperatures of ball powders are lower than those of extruded powders. There are also theories that try to differentiate the barrel wear effects of double base powder (nitrocellulose with a small percentage of nitroglycerine) compared to those of single base powders (only nitrocellulose).

While the military has done some studies (caution: the military is always doing studies, most of which reach either no conclusion or an irrational conclusion), the barrel wear difference between powder types is only applicable to very high volume rapid fire as with assault rifles or machine guns. If your concern is a sporting rifle, then abusing the barrel by shooting it rapidly while hot will wear it out whether you are using ball or extruded powder, and conversely, treating your barrel with care, it will outlast you, again, whether using ball or extruded powder.

True or false ? ; You can get more ball powder in a case than extruded ?.

The more powder in a case means ( Generally ) higher velocity which = more pressure ?.

Which erodes the barrel faster ?.

There are all sorts of theories then there are facts !.

Military uses Ball Powder primarily because it meters well packs well and burns evenly .

Shoot Straight Know Your Target . ...

Take this guy into your garden. When it flows, it should really help the grass green up.

Supposedly the first stick powder, cordite was hot, hot, hot and burned barrel steel, --Oh back say the Boer War days-- so they added some vaseline to cool the burn down... I think I got that story from Jack O'Connor...

Back when I was young, long winded Geo. Herter was hawking (he hawked A LOT!!!) a stick powder from Scotland (later "Scot"???) that had methyl centralite that let it burn cooler...

For sure, you can go to the surplus powder web sites, [shotgun News / shotgunnews.com lists a couple under reloading components, surprise!] and they list two powders--same number/same burn rate. Government surplus. One is supposed to extend barrel life a lot. The other, a hotter powder, is for use with tracers, 'CAUSE alledgedly, the cooler powder will not light them off reliabily... Your tax money at work!

SO? Will you be using tracers?

One of Ackley's arguements for the sharp shoulder was that it kept the powder in the case and less powder burned in the barrel... especially the throat. Ergo longer barrel useful life... Mr. A was an engineer.

As for the mechanical shape of the grain... I would guess, and it is the guess of a person of limited science training in this deep field--(Me),... B!S! !!

Military uses Ball Powder primarily because it meters well packs well and burns evenly .


That's why I use ball powders.