We PDW Open Bolt Question: Not Shooting Hard Bullets Flopping

[shelcoof]

Hey Guys

OK so I just recently installed the Open Bolt System on my PDW and I'm not sure what the problem is but the bullets aren't shooting as hard as before.

When I had the Bras System installed it shot really hard. Now that I have the Open Bolt System installed its just shooting half that much not even.

My KWA USP45 shoots harder than this, I did a comparison. So I have a good feeling there's a problem somewhere.

Facts:
- Have not touched the Hop Up yet. I'm shooting this in my basement so its a pretty small, I don't think the hop up will affect the shots one bit.

- Cleaned Barrel before installing. Should be a smooth ride for the BBS

- Gun has been lubed up before shooting. Bolt moves smoothly

- Its not that cold in my basement. If it was the cold my USP45 would be affected.

- Magazines used is a brand new Open Bolt PDW and a converted M4. Weird thing is the converted M4 shoots much better.

- Propane Tank is close to empty but I used this on my USP 45 as well and it was fine.

- Full Auto more Floppy Bullets.

Anyone have any ideas on what I can do? Or what the problem is?

Thank you guys in advance

Cheers
S

[TPM001]

When you changed from closed bolt to open bolt, am I correct to assume you changed out the hop unit and inner barrel as well? The open bolt hop up is different from the closed bolt.

[Ross]

yeah, try turning the hop up on

[shelcoof]

I turned down the hop up and it is shooting fine now. Not as hard as the Closed Bolt but its shooting better.

I never would have guessed because it was new and I didn't think the hop up would affect the shots like that.

Appreciate the post guys thanks