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Post by Doug on Feb 16, 2003 8:59:24 GMT -5
:DHi,
What is Ammo Grain and what do its numbers stand for?
I am purchasing a 9mm handgun and intersted in ammo info.
Thanks
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Post by DoubleAction on Feb 16, 2003 17:24:12 GMT -5
Doug;The grain is referred to the weight of the Bullet in "grains",the measurement of weight.Hope this helps
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Post by Doug on Feb 17, 2003 22:30:41 GMT -5
;)Yes,
This does help, Thanks.
But one question, is a heavier grain a better choice, faster velocity out of the barrel??
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Post by DoubleAction on Feb 18, 2003 17:09:56 GMT -5
Doug,The lighter bullets usually have higher velosities from the same case as heavier grain bullets, but not always because of other factors in powder or loading.If there is any certain caliber you want to refer to, I can give you some examples.I do not reload, so I don't want to get into powders or pressures to achieve higher velosities on heavier bullets for the sake of argument with someone.
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Post by Slick on Feb 24, 2003 21:14:35 GMT -5
Dubbleakshun's got it right. Think about it, a heavier bullet and a lighter one, both pushed from the same casing with the same amount of powder. It makes sense that it's easier for the energy released from the powder to move the lighter bullet (less energy spent moving the projectile) so it is going to convert that energy into velocity. It takes more energy to get and keep the heavier bullet moving, therefore less left to convert into velocity.
A heavier, slower moving bullet can still have more energy though, so velocity isn't the "end all and be all".
Which is better really depends on your intended use.
Hope that helps,
Slick
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Post by DoubleAction on Feb 25, 2003 13:34:26 GMT -5
Using lighter bullets is an option,the other option is fitting the bullet to a larger cartridge case in order to achieve maximum velosities of a bullet.This is a well beaten path and it will continue as we've seen the developement and overwhelming sucess of the .357 sig and the unforcasted future of the .400 Corbon.Message # 500.
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