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MR762A1 Ammo (.308 Winchester vs. 7.62x51mm NATO)

14091 Views 9 Replies 7 Participants Last post by  russianmaksim
Is there something unique about the MR762A1 in comparison to other 7.62 x 51 rifles where the MR762A1 can fire both the Winchester .308 and the 7.62 x 51 NATO ammo without being concerned about the higher pressure from the .308 vs the 7.62 that is discussed in the link below and other numerous web sites?

If no, there is no such warning in the H&K operator’s manual. The manual: “Use only high quality 7.62 x 51 mm NATO or Caliber .308 Winchester ammunition in the MR762A1 rifle.”

.308 Winchester vs. 7.62x51mm NATO

Thank you for your help!
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Discussion Starter · #8 ·
I am new to firearms, so how does one confirm that the ammo that he or she is purchasing is designed to NATO or SAAMI specifIcations? Is all modern-day factory-loaded ammo purchased today considered SAAMI compliant if not labeled NATO?

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