question-projectile causing damage to weapon

[thejim2]

I bought some cheap 62 gr projectiles from MidwayUSA. The bullet is 90% jacketed, but the very rear/flat of the projectile is not jacketed/exposed (lead?). If firing this though an AR-15, can the exposed lead cause any issues down the road, IE excessive/damaging lead builup in the barrel/gas tube/bolt carrier key.

Thanks for any help.

 

[thespecialist]

Re: question-projectile causing damage to weapon

I've run thousands upon thousands of them through AR's without issue.

 

[Beef82]

Re: question-projectile causing damage to weapon

Nope, that's pretty typical construction for FMJs. Leading is really only a potential problem with non jacketed bullets and direct contact to the bore, your primers are probably putting more vaporized lead into the gas system than the base of the bullet.

 

[leadbullet]

Re: question-projectile causing damage to weapon

yep, nothing to worry about, your theory is correct but in practicality doesn't affect anything measurable.