what does the Gr stand for in amo

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joe2004

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I thought it meant the powder inside the shell?

I was at the local Pawn shop the guy told me no it’s the weight of the ammunition is that correct?
 
Generally, the Gr. is the weight of the bullet as in the 230gr. .45ACP. The grain is 1/7000 of one avoirdupois pound.

In black powder cartridges you will see some loads listed as caliber-powder weight-bullet weight as in .45-70-405 Government.

And, no, it is not the total weight of the cartridge.

You have encountered the all too common phenomenon of idiot gun shop personnel. Try the search function for nearly innumerable past threads.
 
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so when you Buy AMO you realy dont know what your buying ? so if you compare to companies that sell 357 Mag are they both filled the same

so when you shoot they are bot the same as far as recoil ?
 
RE:joe

No ammo is all very different most use the standard loads and others do not, depends also where they buy their bullets from. Check out some of the reloading forum and you will be amazed at how complex it really gets. BTW AMMO is spelled AMMO not AMO.

As for recoil it depends, a 158gr bullet versus a 110 gr bullet loaded into a standard load for 357 can differ very much in recoil, I call it "FELT RECOIL" and " PERCIEVED RECOIL" just so I can explain it. heavier grain loads will usually have more FELT recoil such as a 158 grain .357mag versus a 110grain .357mag has more PERCIEVED recoil (big flash). Some companies use different powders to achieve different velocities for different grain bullets also there is a difference in jacketed and gas checked loads. its very complex, the best thing is to try out a couple different loads and brands.
 
so when you Buy AMO you realy dont know what your buying ? so if you compare to companies that sell 357 Mag are they both filled the same?

Not always, probably even not usually. While the bullet weight will be listed on the box, the amount and type of powder used in the load is usually not listed. Some ammo makers will put on the box info that shows the muzzle velocity of the bullet when fired from a "test barrel." Since your gun is not exactly like the gun used to test the ammo, the listed MV is just a way to compare one ammo to another and is no guarantee you will get the same MV out of your gun.

Not all makers put that data on the box. But you can find it on their website.

so when you shoot they are both the same as far as recoil ?

Two cartridges with the same bullet weight and same MV should be the same in recoil. If either bullet weight or MV changes the recoil will also.
 
Ballistic measurements explained

It's an abbreviation for "great", for example a common .40s&w is great to the 180th power. While a .223 is a very nice round but only great to the 55th power, and so on.
 
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