What throws the AR shooters is that there is a specification for a heavy barrel for an AR-15/M16, and they mistakenly think it applies to all other firearms. This barrel is sold as an AR-15 bull barrel. It has flutes, but theyâre not a requirement for a bull barrel. An AR heavy barrel would be much thinner than this.Thereâs no exact specification for a bull barrel.In fact, the modifiers âbullâ and âheavyâ can be used interchangeably.hat throws the AR shooters is that there is a specification for a heavy barrel for an AR-15/M16, and they mistakenly think it applies to all other firearms. This barrel is sold as an AR-15 bull barrel. It has flutes, but theyâre not a requirement for a bull barrel. An AR heavy barrel would be much thinner than this.
Too much iron can be just as bad as too little, as bacteria and cancer cells thrive in an iron-rich environment, reproducing fast and furiously. Too much iron causes free radicals to form, which have been linked to everything from cancer to heart disease to aging. Iron Deficiency and Anemia Two billion people around the world, mostly children and women of childbearing age, suffer from iron-deficiency anemia.
Can zinc be harmful? Yes, if you get too much. Signs of too much zinc include nausea, vomiting, loss of appetite, stomach cramps, diarrhea, and headaches. When people take too much zinc for a long time, they sometimes have problems such as low copper levels, lower immunity, and low levels of HDL cholesterol (the good cholesterol). The upper limits for zinc are listed below.