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Jap 7.7x58


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#1 asquirrelsworstenemy

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Posted 10 January 2012 - 04:12 PM

I've been reading that the Jap 7.7x58 is the metric measurement of the British .303, is that true? Am I able to substitute the .303 for the 7.7 Jap round? Thanks and happy hunting!!
Courage is being scared to death but saddling up anyways. -John WayneGod made man, Sam Colt made them equal.

#2 DirtyDave

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Posted 10 January 2012 - 06:56 PM

They are not the same cartridge. They take the same .312" dia bullet if you are reloading though.Hornady and Norma offer ammo in 7.7jap
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#3 docskinner

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Posted 10 January 2012 - 06:59 PM

I've been reading that the Jap 7.7x58 is the metric measurement of the British .303, is that true? Am I able to substitute the .303 for the 7.7 Jap round? Thanks and happy hunting!!

it uses the same slightly larger .30 caliber bullet that the .303 British does (.311-.312 v .308 for what we consider normal 30 caliber), and had about the same ballistics, but they are NOT the same cartridge! http://www.chuckhawk...-7mmArisaka.htmhttp://en.wikipedia....7×58mm_Arisaka

#4 asquirrelsworstenemy

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Posted 10 January 2012 - 08:52 PM

I didn't think they were but thanks! Didn't want to blow up my gun!
Courage is being scared to death but saddling up anyways. -John WayneGod made man, Sam Colt made them equal.

#5 Divernhunter

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Posted 11 January 2012 - 06:09 PM

Graf & Sons will have the ammo the cheapest and it shoots well. They also have brass for it if you want to reload.




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