Bizarre Safety Warning from the NRA

[enforsore]

I opened my NRA journal that arrived in the post today, only to find the most bizarre safety warning i have seen in ages.
On page 9 the NRA has issued a warning against using Enfield no4 7.62mm conversions to fire 155 RG ammo ???
and issues the warning against ALL 7.62mm conversions including envoys, enforcers, parker hale T4's and the like. Now this rifle in various guises has been around for 40 + years so why the problem now, or is it the health and safety nutters at work again !!!
comments gentlemen?

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