.177 Weihrauch HW100 Performance and Maintenance Review

[bdzjlz]

I purchased this rifle from AOA in March of 2021. It is the full length version, and obviously features the sporter stock configuration.

This would be an excellent "heirloom" rifle for someone new that is thinking about purchasing a quality pcp. Built in typical german fashion, there is absolutely not much for one not to like. The magazine system is flawless, simple, durable, and as easy to load as any on the market. It is absolutely the most quiet rifle in my collection. The adjustable trigger is perfect

One small issue is that the magazine slot is so narrow, that a Patch Worm won't fit in it and make the turn. I resorted to cleaning the barrel utilizing a half mag of felt cleaning pellets.

A couple of the stock screws moved slightly when checked. The scope screws were all at the proper tension when checked, so I moved to the indoor test range, following up outside at 52 yards with a group just to be certain the results were within a reasonable anticipated outcome, given the reported 8 mph crosswind conditions.

This is certainly a rifle that can be passed down for many generations.

 

[elh0102]

Great rifle. I generally remove the barrel for cleaning. It's easy to get off, and it keeps me away from the breech seal, which is in the front action module. Mine is also a .177, and I tuned it down to 12 fpe, great yard rifle and greatly increased shot count.

 

[rigbymauser]

Even though I have Revere in .177cal the Weihrauch is tempting too. One of the best airguns to have been made.

 

[cea1960]

I have the BP-K in .177. It's shooting Polymag Shorts at 977fps and 1/2" groups at 50 yards on a windless day. At 30 yards, 1/2" groups are possible with just about any .177 pellet.

Mine also is the quietest in my small collection.

 

[bdzjlz]

Thanks, guys!

 

[gendoc]

my hw100 full stocked carbine is an absolute dream in all aspects in operation.
its a .177 and it prefers the JSB 10.34gr in what ever it has to do.

 

[bdzjlz]

 

[shausen]

That's a beautiful rifle. Have you ever shot an HW110? I hear they're even more quiet.

 

[bdzjlz]

Thank you. I have not shot a 110. I do have another walnut thumb hole 100 in .22. Both are quiet and super accurate.

 

[shausen]

Thanks. I'm not a fan of the looks of the 110, but from what I've read it's even quieter and I have tinnitus so every bit counts.

 

[Filnez]

I have one in .22 cal. that I got from AOA this fall, love it. Very accurate with the 18 gr JSBs. and so quiet, just spikt when you pull the trigger.

 

[MikeVV]

I've got the "bullpup" version.
Same receiver, shorter barrel, and stock.
Agreed, the design and machining is second to none. Solid, and all parts fit VERY well together.
Great shooter.

BUT, mine developed a major leak somewhere. I replaced the o-rings at the valve between the air cylinder and the receiver, no change. Unfortunately, the kit I bought did not have the air cylinder o-rings, so I have to get those.

Mike

 

[aussiegav]

Great guns that's for sure I regret selling mine super easy to work on too.
Lots of aftermarket mods available.
Give the QYS Streamline pellets a try they usually work very well.

 

[phil1964]

The hw100 177 was one of my early pcp buys ,built like a tank. Definitely a keepsake.

 

[KatoKevin454]

I've got the "bullpup" version.
Same receiver, shorter barrel, and stock.
Agreed, the design and machining is second to none. Solid, and all parts fit VERY well together.
Great shooter.

BUT, mine developed a major leak somewhere. I replaced the o-rings at the valve between the air cylinder and the receiver, no change. Unfortunately, the kit I bought did not have the air cylinder o-rings, so I have to get those.

View attachment 308879


Mike

Mike, I found that on the HW100 there are several areas that can develop leaks, here's a diagram of the areas, you can get O-ring kits on Ebay from
HW100tuning.com or from https://hw100tuning.co.uk/shop/ols/products/full-service-seal-kit
also D & L air guns ..https://dlairgun.com/collections/hw100/products/hw100-seal-kit

 

[MikeVV]

Mike, I found that on the HW100 there are several areas that can develop leaks, here's a diagram of the areas, you can get O-ring kits on Ebay from
HW100tuning.com or from https://hw100tuning.co.uk/shop/ols/products/full-service-seal-kit
also D & L air guns ..https://dlairgun.com/collections/hw100/products/hw100-seal-kit

View attachment 308966

Great, thanks Kevin.

Yeah, the # CR129 and the #CR044 are the ones that I replaced the other day with no luck. I did these first as they are the "second" to see uncocked pressure. No change in leakage at all.
I still need to get a full kit, or at least the air cylinder o-rings to do the three in there next.

Thanks again for the schematic and the recommended rings to change...and another place to get them.

Mike

 

[KatoKevin454]

no problem, I have 3 HW100's right now in my gun collection, I had 6 at one point in time, they were leakers I bought, repaired and sold, most were the main Valve O-ring OR129, but a couple had several leaks at OR044 in the cylinder fill probe valve and OR123 on the Breach block EC215