Bolt gap question for the resident HK guru's.

[javelinadave]

I just measured the bolt gap on my newly acquired SW5. It is .007" / .178mm. A bit small from what I am reading but I'll ask the experts........ What should I do?
Thanks,
Dave

 

[nayo]

Let it eat Dave I have seen them work with bolt gaps as small as .003

 

[javelinadave]

Cool, thanks!

 

[MrM4]

You should be ok the gap might change over time as you shot it and the gun wears but if it runs go for it.

 

[Travarmy]

I just measured the bolt gap on my newly acquired SW5. It is .007" / .178mm. A bit small from what I am reading but I'll ask the experts........ What should I do?
Thanks,
Dave

The first question would be what size rollers are currently in your SW5?

Here is the issue with reduced bolt gap: as the bolt gap shrinks, eventually the weapon becomes a single shot with the action remaining locked...like a bolt action.

Starting bolt gap should be .018" with Zero rollers. I have attached a few pics.

Just my 2 cents...

Travis

 

[HART1]

I'm with Travarmy. The cheapest fix is to check your rollers first. Adding oversized rollers would be the easiest fix, if they aren't oversized already. Also check your locking piece. Sometimes a new locking piece will increase bolt gap also.

 

[javelinadave]

Ordered plus 4 rollers today, the rifle had 8.0mm rollers installed. I'll keep you all posted on the results.

 

[javelinadave]

.017........ Perfect! Thanks all and thanks to RTG for the speedy shipping.