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Yes, a Colt AR-15 can fire 5.56mm ammunition, provided it is specifically chambered for it. Many AR-15 rifles are designed to handle both .223 Remington and 5.56x45mm NATO cartridges, as they have similar dimensions but different pressure specifications. Always check the markings on the barrel or consult the manufacturer to ensure compatibility before use.

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1mo ago

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What is the difference between 223 ammo and 556MM ammo?

While they are similar, the cartridges are not the same, with slight differences in the shoulder angle, length of neck. It is safe to fire .223 in a weapon chambered for 5.56, but 5.56 ammo in a weapon chambered for .223 may NOT be safe.


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No. While there ARE firearms made to fire both the .45 Colt and the .410 shotshell, they were made for that purpose. Never attempt to fire ammo that a firearm was not made to fire.


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You need to contact Colt for a correct answer.


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.38 Special. It can also fire .38 Short Colt and .38 Long Colt. Do not attempt to fire .38 S&W from a .38 Special.


Will a Marlin Model 1895 chambered for 45 70 fire 45 Colt ammo?

If it is chamberd for it, yes.


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Be aware! Never fire ammunition in a weapon not chambered for it! Stick to the .45 colt ammo.


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