I just got a box of 500 Winchester .22 and I notice that the bullets are not jacketed or plated in copper.
What is the downside of using this kind of ammo vs copper plated or jacketed .22 bullets? Additional fouling?
for my knowledge, is a brick of .22 == 500 rounds?

What is the downside of using this kind of ammo vs copper plated or jacketed .22 bullets? Additional fouling?
for my knowledge, is a brick of .22 == 500 rounds?