Quote from: ER00z on May 25, 2021, 07:11:24 PMI'll have to learn how to disassemble the 95 when the time comes. I suspect by the time I shoot the four tins of 10.3gr. pellets I may need a new spring. Time will tell.Nice choice Zack! Based on my recent experience I think you'll probably need to worry more about your piston seal than your spring. This past weekend I installed an ARH kit because after 1500+ pellets my 4 month old HW95L started to shoot a bit "odd". I can't describe it better than that. I just noticed that it was different. The OEM spring looked just fine and the velocities I was getting were still good, but the piston seal was developing cracks and was on its last legs I think. I am not sure why this may have happened. Perhaps it was shooting a bunch of (20-30) really lightweight alloy pellets awhile back.Good luck and have fun!Tony
I'll have to learn how to disassemble the 95 when the time comes. I suspect by the time I shoot the four tins of 10.3gr. pellets I may need a new spring. Time will tell.
Quote from: tdupont83 on May 26, 2021, 04:27:33 PMQuote from: ER00z on May 25, 2021, 07:11:24 PMI'll have to learn how to disassemble the 95 when the time comes. I suspect by the time I shoot the four tins of 10.3gr. pellets I may need a new spring. Time will tell.Nice choice Zack! Based on my recent experience I think you'll probably need to worry more about your piston seal than your spring. This past weekend I installed an ARH kit because after 1500+ pellets my 4 month old HW95L started to shoot a bit "odd". I can't describe it better than that. I just noticed that it was different. The OEM spring looked just fine and the velocities I was getting were still good, but the piston seal was developing cracks and was on its last legs I think. I am not sure why this may have happened. Perhaps it was shooting a bunch of (20-30) really lightweight alloy pellets awhile back.Good luck and have fun!TonyTony the lightweight pellets don't help but it seems the newer 95s are using the old design thick lipped seal and they can't handle the excess lube the factory seems to be using now. They had those seals years ago then went to a thin lipped seal and then back again. People have their favorites I like the Vortek piston seals. Your POI will start to wander before your Weihrauch seal completely let's go. Then you'll know it time to order a seal and a tube of krytox.HTH, reach out to me if you have any questions. Ron
Current OEM HW95 seal.
Quote from: Deerstalker on May 26, 2021, 06:19:35 PMCurrent OEM HW95 seal.Yeah that's the old style fat lipped seal they went back to.Ed, all my Weihrauchs purchased from 2015 to Gwen's Hw30 a few weeks ago all have the thin parachute seals. Apparently they flip flop between designs. I've only seen the thick lip one's that I thought was the older style just recently on a few new hw95s that had problems with erosion problems.
Quote from: Bayman on May 26, 2021, 08:34:51 PMQuote from: Deerstalker on May 26, 2021, 06:19:35 PMCurrent OEM HW95 seal.Yeah that's the old style fat lipped seal they went back to.Ed, all my Weihrauchs purchased from 2015 to Gwen's Hw30 a few weeks ago all have the thin parachute seals. Apparently they flip flop between designs. I've only seen the thick lip one's that I thought was the older style just recently on a few new hw95s that had problems with erosion problems. Very interesting for sure! One of the reasons I started cutting my own oring sealed piston caps was to replace the "thin parachute edged piston seals" because they made my .177 R9 very "temperature sensitive" for late fall and early spring squirrel hunting in West Virginia when the mornings were cold and temps rose about 30 degrees during the hunt. I theorized that the wide lube and seal pressure was affected by changes in both lube viscosity (when I was using molly lubes) and piston seal durometer. Also the thin edged parachute seal sapped velocity at a time when I was using duplex reticled scopes and holdover aiming while trying to get about 910fps from 7.9 grain crosman Premiers WITHOUT going to a stiff heavy wire spring.
Yeah Ed. I believe that you are right about the thin ones sapping energy. I've used the Weihrauch and JM seals with the thin lip. They must expand tighter against the bore. I guess is the purpose of the design as to improve sealing. Running a cupped Vortek seal I've always picked up power over the thin lipped seals. Interestingly the bigger the bore, the bigger the difference is. It's not much on a 25mm Hw30 but it's more on a 26mm and it was quite a bit on my 30mm RX1.Gwen's Hw30 was dieseling quite a bit and needed to be degreased. It didn't seem to be grossly over lubed but there was quite a bit of grease forward the piston seal. Perhaps these things aren't being assembled correctly. Seems to be a rash of relatively new guns burning up piston seal and even detonating. Quote from: nced on May 26, 2021, 11:31:05 PMQuote from: Bayman on May 26, 2021, 08:34:51 PMQuote from: Deerstalker on May 26, 2021, 06:19:35 PMCurrent OEM HW95 seal.Yeah that's the old style fat lipped seal they went back to.Ed, all my Weihrauchs purchased from 2015 to Gwen's Hw30 a few weeks ago all have the thin parachute seals. Apparently they flip flop between designs. I've only seen the thick lip one's that I thought was the older style just recently on a few new hw95s that had problems with erosion problems. Very interesting for sure! One of the reasons I started cutting my own oring sealed piston caps was to replace the "thin parachute edged piston seals" because they made my .177 R9 very "temperature sensitive" for late fall and early spring squirrel hunting in West Virginia when the mornings were cold and temps rose about 30 degrees during the hunt. I theorized that the wide lube and seal pressure was affected by changes in both lube viscosity (when I was using molly lubes) and piston seal durometer. Also the thin edged parachute seal sapped velocity at a time when I was using duplex reticled scopes and holdover aiming while trying to get about 910fps from 7.9 grain crosman Premiers WITHOUT going to a stiff heavy wire spring.
. Usually I leave triggers as is from factory but the HW95 trigger pull seems to be slightly heavier than the HW97's triggers.
After spending some time with the Weihrauch's I was able to acquire, I just wanted to report back. I find myself reaching for the .177 HW97 KT synthetic (Blackline?) the most. The stock being a synthetic material I don't stress about any nicks or dings. I've taken it on a few outings and the weight becomes noticeable after a while, especially in hilly areas. It wears a Weihrauch moderator, though it's not necessary and added length isn't the best in the woods but is still manageable.