Beeman P11 and Weihrauch HW75
I greatly enjoy both of these simple to use guns - but - I need to quiet them down!
Who carries and adaptor/moderator for these - my searches yield nothing?
Any help appreciated.
I just googled "Moderator for HW45" and I don't see any pictures of one with a moderator attached. I'm not saying it hasn't been done, I just haven't seen it. I'd like to see a picture now to see how it was done.
I see at least three challenges with putting a moderator on a P1, P11, HW45, Black Star, Silver Star or Bronze Star. First, the barrel is recessed within the cocking lever so there is no access to the exterior of the end of the barrel where moderators are usually attached. This would likely require that you cut internal threads on the cocking lever immediately in front of the barrel.
This brings us to challenge number two. The cocking lever is made of a light alloy. Relying on the strength of this alloy to hold a threaded moderator that would be subject to side-loads might be asking for a failure at that joint. Getting the moderator perfectly inline with and concentric to the bore would also be challenging.
Finally, when the barrel/cocking lever is at full extension it would leave any moderator pointing almost back to the grip. I don't know if there is room without interference somewhere. Again, not saying it's impossible, just saying that the engineer would need to "do the math" so to speak.
Finally there is the noise level of the gun itself. This pistol doesn't make much noise and most of the noise it does make is coming from the action/piston. Eliminating muzzle noise, in my opinion, may leave you unsatisfied with the final result as muzzle noise may not be a high enough percentage of the total noise to notice once it's gone.
One approach may be a custom barrel that extended beyond the cocking lever. This would likely require modification of the cocking lever which could affect accuracy by reducing support of the barrel.
Again, not impossible but a cost/benefit analysis may be in order.
I shoot my P1 a lot. About half in my basement into a steel trap and half at the local range into a soil berm. In my basement all I hear is a loud clang when the pellet slams into the trap. At the range all I hear are the rimfire and centerfire pistols on either side of me all moderated by my electronic ear defenders. To be honest I should really shoot it more in quieter environments to get a better idea of what it really sounds like. Who knows, maybe I'll wind up wanting a moderator on mine as well.
P.S. I found mention of one here: https://www.airgunforum.co.uk/community/index.php?threads/hw45-adaptor.244004/
The owner commented that "...it made little difference."
Back in the day when the P1/HW 45 was new, I remember reading that it was actually designed for an integral sound moderator. That’s what the long muzzle recess is actually for - it was intended to take a hollow felt cylinder sort of gadget, inserted flush with the front of the gun.
Apparently it never came to market, probably due to legal fears. I don’t know how effective such a thing would be, but it might be fun to try fashioning one.
RockDoc I understand your thinking but were not hear to judge what others want is right or wrong
if someone what to install I LDC who really cares, so could it be done yes, is it worthwhile who knows
so pictures there are
are they just for looks maybe
my feeling is if someone wants an adapter or anything we are not hear to talk him out of it but ry to help him with his question and point him some direction
a tapered adapter epoxied in the cocking handle opening would be strong enough for this purpose and with a thread protector it would not be and bad look
we have all done things to something that made no sense to others but we did them, this could be just one of those cases but hasn't been proven to me yet and may never be
but I stuck in a pile of project ideas
I appreciate the input, I have both the Beeman P11 and the HW 75 - the single stroke pneumatic is the loudest of the two, the spring piston is definitely quieter. Moderators on Airguns, are for me, a consideration for neighbors - I can wear earplugs. I just don't want them all in a fuss because I'm using my backyard range (two acres) to it's full potential - I have 6 suburb type homes that back up to my 2 acres.
Ah, that's what threw me off. The P11 and the HW45 are both spring piston guns and quieter than any SSP design. If you have an SSP design that looks like a P11/HW45 it's an HW75. And yes, the HW75 would be quieted by a moderator as its SSP action is nearly silent and all the noise is being generated at the muzzle.
Good catch - I typed in the wrong Weihrauch pistol in the heading thread label. Oh well.
I do indeed have the following:
HW 75 = single stroke pneumatic (ssp) shooting at 410FPS in .177 ( def. louder of the two pistols)
Beeman P11 = spring piston w/2 power settings 300 FPS and 600 FPS
they ARE different - please forgive my numerical snafu on the keyboard. sigh.
well I made a wood dowel for the barrel end of a HW45 today and it looks like I was just spinning my fin, wasting time
but I did get a good fit, the hole is 43mm deep +or - a very little, the top is 3/8 inch and the bottom is 7mm, tapered
and tapers have a good chance of stay put when used but if you put a hole of .250 in it you have little material left at the bottom being 1/4 is 6.35 mm
so I got out a 75 and the dowel fits in the hole but loosely and it is not tapered but is smaller at the bottom at about 38mm in depth
the dowel for the 45 fit it the bottom but I would guess the hole is 10mm and could take a .250 hole
so if you made the a tight fitting plug with a .250 hole, out of 1/2 inch delrin and threaded for the 1/2-20 thread you could be I business
I just happen to have the materials I might even try it
so this just some info I have found, both the HW45 and HW75 could be fitted with and adapter for a short LDC and I believe you could press fit both of them and use stiction, friction, as the way to keep them in place
I'm making a lot of assumptions but you have to start somewhere