还有这个 [url]https://www.pewpewtactical.com/brass-vs-steel-ammo/[/url]

To wrap things up, here’s what you need to remember:

• Brass is generally cleaner to run than steel because it expands better and creates a better seal, resulting in less fouling of the chamber and receiver.
• Steel is more robust than brass and may extract better in some guns (AKs, FALs, other short cycle guns firing intermediate cartridges) because it’s less likely to get ripped up by an aggressive extractor/more violent extraction cycle.
• Brass can be reloaded, steel can’t unless you want to turn your gun into a grenade.
• Steel cases may be more likely to get stuck in the chamber, particularly in lightly-extracting guns like the AR-15.
• Steel cases are usually coated for better performance, and the differences between coatings are relatively minor.
• Steel-cased ammo is not necessarily less reliable or accurate than brass.
• Only you can decide what’s best for your gun and your particular circumstances.
• Test all ammo used in a defensive firearm extensively, and test range ammo as well if you can.

热血热胜红日光 发表于 2020-09-27 09:52

谢谢科普。个人复装不是个concen 的话

more likely to get stuck in the chamber

算是个不选钢弹的原因