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Old 11-15-2011, 01:58 AM   #1
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Default Help please

I need a little help understanding...grain...ok a 240 grain 45 and a 240 grain 44magnum.....i dunno just a little confused
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Old 11-15-2011, 02:01 AM   #2
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Grain refers to the weight (mass) of the bullet. Caliber is the diameter.

For any caliber of cartridge there are usually several weights of bullet.
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Old 11-15-2011, 02:03 AM   #3
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So the two I mentioned are the same weight? Wouldnt that affect the power advantage? Just curious
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Old 11-15-2011, 02:03 AM   #4
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Grain is the measurement of weight of the bullet itself. (the projectile) The caliber determines the cartridge case size and the amount of powder that is used to propel the bullet. ie: a certain amount of powder propels the bullet at x feet per second. There are various combinations for every caliber.
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Old 11-15-2011, 02:07 AM   #5
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So with a 240 45 and a 240 44 mag...the bullet weoghs the same....
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Old 11-15-2011, 02:09 AM   #6
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Quote:
Originally Posted by DEagle13 View Post
So the two I mentioned are the same weight? Wouldnt that affect the power advantage? Just curious
Yes the bullets have the same weight. You'd have to refer to some ballistic charts to do a comparison. Off the top of my head I'd guess the .44 mag would be the more powerful of the two.

This is probably the the only thing I remember from high school physics:

Force=mass*acceleration

So for any two objects of the same mass the one that is moving with higher velocity will have more force(power).
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Old 11-15-2011, 02:12 AM   #7
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Ok so same weight....how is the powder measured or whatnot...44 is longer therefore it would hve more powder...but whata the terminology on the powder amount
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Old 11-15-2011, 02:27 AM   #8
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Gunpowder is also measured in grains. Another factor that determines the velocity of the bullet and the power it has is how fast the powder burns.
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Old 11-15-2011, 03:05 AM   #9
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There are 7000 grains in a pound. The type of powder you use will also determine the amount you use. Different powders burn faster than others. Normally pistol powders burn faster than rifle powders. Lets say that you are talking about using a powder like titegroup. A 44 mag with a 240 grain bullet would use a lot more powder than say a 45 acp of the same bullet weight. If you used the same amount of powder in the 45 acp it would go kaboom for sure.
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Old 11-15-2011, 03:07 AM   #10
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Default DEagle13, sounds like...

You need to look over a reloading manual.

Some basics:

Caliber is the diameter of the bullet and as it happens, the bore, or interior 'tube' the length of the barrel. The bigger it is, the heavier the projectile - usually, but not always. U. S. and some older British calibers are measured in decimal inches, usually hundredths or thousandths of an inch. European (and most of the rest of the world) calibers are measured in millimeters and

Bullets are the projectiles. They are weighed in grains (1/7000 of a pound) in the U. S. and in grams - usually fractions - in the rest of the world. Gunpowder is also measured in grains or grams. Typically the heavier the bullet and the more gunpowder used, the more powerful the cartridge and firearm. Gunpowder comes in various speeds of burn rate. However, they are not listed by burn rate but by name or designation.

All firearms have a pressure level. This is the real limiting factor for 'power'. The higher the pressure in the system, the faster the bullet gets launched.

I said all that to say this: Get a reloading manual and read it. Depending on where you live, the local library might have a reloading manual. Even an old manual will give you the basic information and how all the 'parts' of a cartridge and firearm interplay to give a desired or specific result.

I don't mean to sound stern or blow you off, but it sounds like the questions you're asking are not two sentence answers.
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