Brocock/BRK Bantam Slingshot too loud.

[Dm800]

Anyone got any suggestions on how to make a sub12lbf Brocock Bantam mk1 a bit quieter from slingshot area? ( and no please don't say sell it and buy a X).
It's the only thing I don't like about the gun but struggling to find much in the way of any service information. There's very little information here on the uk sites. Just wondering if any members had tinkered with one to make it quiter. Ta.

 

[Joedirt199]

If it has the striker adjuster like the huntsman, you could have one made from PEEK plastic. That would get rid of the metal on metal sound.

 

[Joedirt199]

After looking, they already make PEEK screws so see if you can find a proper set screw that will fit and that should do it.

 

[Dm800]

Am I correct in thinking that winding the hammer screw in ( clockwise) puts tension on the spring and therefore reduces the power???? Or have I got that wrong. There is absolutely no info here in uk about power adjustment as most sites frown upon it.

 

[Joedirt199]

The striker adjuster just changes the distance that the hammer has to travel to hit the valve pin. There is no spring adjustment on the slingshot hammer. You can shim the hammer spring with washers to give it more tension. Mainly you just shoot a few shots over a chronograph to see where you are at then adjust the striker in till you max out in velocity. Less striker if you want a quick short burst of air. Works like a Benjamin Marauder hammer.

 

[Dm800]

OK.. I give up.. how on earth do I reduce power via slingshot... I've tried everything and nothing seems to make a difference.... confused.

 

[elh0102]

If that hammer assembly is similar to the Daystate Revere, there actually is a HST adjustment, it's just not in the manual.

 

[Dm800]

 

[Dm800]

And that's a sub 12lb ft rifle........

 

[Ezana4CE]

I was discussing BRK/Brocock’s slingshot hammer system with another member over the weekend and captured this screenshot to get a better understanding of it.

 

[Dm800]

That's how I understood it and how it's setup...head scratching time.

 

[Dm800]

For the life of me I have no idea what is causing this gun to be so loud.

 

[Dm800]

 

[Dm800]

I found the above on a thread on site. Bit different to mine posted above......

 

[elh0102]

I assume you have verified that it's not a bad breech seal, which will cause a loud pop.

 

[Dm800]

I assume you have verified that it's not a bad breech seal, which will cause a loud pop.

Yes...breech seal is fine.

 

[Dm800]

Anyone know the specifications of the hammer spring? I think it is 57mm x 11mm x 1.2mm.

Cheers.

 

[Dm800]

Arrrgh......a hammer hitting an anvil would be quiter. ...won't be long before it's binned.

 

[Dm800]

Hammer removed so only the cage moving....wow that's loud....wonder if it's the spring or any other ideas ?????.....

 

[Ezana4CE]

Hammer removed so only the cage moving....wow that's loud....wonder if it's the spring or any other ideas ?????.....

@Dm800 That does not sound all that noisy to me. It sounds like an airgun. Is there an air rifle that you can compare that sound too that would make it easier for us to see that the Brocock in your video is noisy?