The recoil winner is still the MP5

[ysr_racer]

You PMed me about it

I send and spew so much bull crap, I can't keep tract of it all.

[FeuerFrei]

It’s all about how fast you can return your sight to the target.

Thanks!

Gotcha. Bounce vs recoil.

I have shot NFA'ed MP5, STEN and Uzi smg's. There was a difference in behavior from open bolt vs closed bolt as far as hosing targets. *Closed bolt was easier to control. The weight had a huge difference in "bounce". All the bolts were bearded fat lady at the circus category.

I would definitely say the HK allowed easier ability to stay on target.
The STEN needed NATO ammo to run reliably. Soft commercial stuff caused occasional gag reflex. Noticed a change in bounce/recoil. Still easy to keep on target. Proper stock helps.

*Burst fire

[JWHuey]

Its the rollerlockin.

My ptr32 in 762x39 with a surefire brake is like shooting a 22....

[highpower]

I did a similar test between my AP5 and my CZ Scorpion and had the same basic results. That's not to say the the Scorpion isn't a accurate and fun little carbine, but the roller lock is just smoother.

In my case the guns were as close to being equipped identically a I could get them ergonomically.

[beanz2]

Its the rollerlockin.

My ptr32 in 762x39 with a surefire brake is like shooting a 22....

With the rollerlocked delay and the PTR32 heft, that is no doubt a soft shooter!

I did a similar test between my AP5 and my CZ Scorpion and had the same basic results. That's not to say the the Scorpion isn't a accurate and fun little carbine, but the roller lock is just smoother.

In my case the guns were as close to being equipped identically a I could get them ergonomically.

[highpower]

I think I got it fixed..

[FNGGlock]

I just bought this roller delayed kit for my PCC from https://coreys28.sg-host.com/

It's an easy install.

OP, where do you live? Want to compare it?

Very pricey, but would love to hear your feedback as it compares to the RDB system for recoil management.

[ysr_racer]

Very pricey, but would love to hear your feedback as it compares to the RDB system for recoil management.

I've already got a PCC with a CMMG RDB Radial Delayed Blowback 9mm (barrel and bolt carrier).

I'm going to swap this system into my Lead Star PCC, and compare them.

The technology is different, but the idea is the same. Keep the gun in battery longer.

The CMMG RDB Radial Delayed Blowback 9mm barrel and bolt is $500. The Scheel kit is only $300.

I'm guessing they work about the same, however the Scheel kit is a 10 minute install on an existing gun.