IS it really important to use seamless and .20g bbs?

Question

I just bought a Double Eagle XM8 AEG that shoots about 290-300 fps and it say to use either .12g or .20 g seamless bbs. But the .20g seamless are hard to find in bulk and cheap, there usually a bit more expensive. so it is really worth buying the .20g seamless bbs over standard .12g bbs that i can get 50,000 on ebay for $10?

Answer 1

Yes trust me .12s will damage an aeg very quickly if you use them often in  your gun. go with the .20s

But then again its up to you, ive seen this happen so many times before, ppl say it wont damage a gun and i tell them this, and the next day they show up to a game with a broken gun because they used .12s, trust me go .20s

Hope i helped

Answer 2

It isn't as important in that gun, but it is still powerful enough that you could blow up a .12 in it.  You risk damaging your gun and the wind will blow .12s around.

I'm guessing here, but I am pretty sure you will ruin your gun long before you shoot 50,000 BBs from ebay