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Hey everyone, just a "duh huh" question on .45 Auto hardball ammo..

Is Remington UMC brand ammo designated type MC, (metal case), the same as other ammo brand makers designated type FMJ, (full metal jacket)? :confused:

I want to tell myself it is but I need your confirmation...

Thanks for your help!
 

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My understanding has always been that FMJ has an exposed lead base while MC is a bullet fully metal enclosed, including the base. As far as performance they would be equivalent.
 

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FMJ bullets are actually quite decieving. Full Metal Jacketed bullets usually have lead exposed at their base so it's not a fully encased bullet. Remingtons "MC" is just the abbreviation they use for their FMJ ammo. What I use is TMJ bullets to prevent lead fouling. TMJ are total metal jacketed bullets that feature a metal jacket that fully encases the lead core including the bullets base so that lead doesn't vaporize upon ignition and cause lead fouling in the barrel. There are also lead free solid copper bullets that do the same.
 
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