Alright well I am shooting with .30s, so what would it be with the stock spring now? 10-15 less?
If you're talking fps, no, more like 100 fps drop. This doesn't matter as explained countless times.
Whatever that doesn't matter, anyways I really haven't done too many modifications to it. I did stuff it full of memory foam though, and a suppressor that had come with my SCAR from some guy on eBay is custom made and it makes a cool air noise when you shoot it.
I'm sure it's just so quiet because of the stock spring, I am going to put in my M170 tomorrow, I will tell you guys how the noise is then. Also, I will take pictures of the target shooting with all of my springs from like 100ft, 150ft, and 200ft. With the 650mm installed.
Ahh, don't do it! Gonna wreak those sears. Read up on gun mechanics. Unless you have a highly upgraded trigger, your guns won't last.
The stock barrel on my gun is 515mm (weird), so I am going to order a barrel a little longer than that, just to try the grouping thing like you guys said.
Why longer? Get one shorter, and we'll probably see a noticeable sentence.