Hello all. Getting some conflicting information. Brand new Weihrauch HW98 .177 arrived from AoA. Test sheet shows 5 shot avg. @ 11.7 fpe(JSB 8.44 @792fps). I was expecting a bit more pep from a full power export. AoA assured me this was correct, and a non FAC rifle would be 8.5-9fpe. Anyone have chrony numbers/info to share on a stock 95/98 .177 rifles? Thought I had a pretty good grasp on the powerplant. Maybe the piston seal needs shot in? Thanks for any information.
Brand Spanking New HW95/98 .177 power numbers?
- Thread starter jlharden
- Start date
Should be in the 15 -17 FPE range. I have a Beeman R9/HW95 and it produces 17 fpe.
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Here's a review of a HW98 177 & 25 cal with chrony numbers for both. The 177 averaged 15.5 FPE
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I don’t have any experience with the hw95/98 but my hw97 .177 was 14 fpe out of the box. It’s my understanding that the 97 and 95/98 have similar power plants. A .22 would be 1-2 fpe higher than a .177 with a full power spring. Your gun might have a 12 fpe spring or a broken spring.
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Yeah thats definitely not right. Factory spec on that rifle with JSB 8.44s should be about 15ftlbs after it settles in. The non fac versions are where yours is at now.
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My HW95 177. Is around 14.5 ftp. Now my Hw97. 177. I thought was full power. and should have been 14 ftp. Is a 12 ftp The 97 out preforms the 95
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Sounds like you have a UK sub 12 ft lb spring in it. Probably a sweet shooter at that power level but definitely lower than it's supposed to be.
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" after it settles in." i would shoot it a while , let it settle in
BTW i had paid $$$to have mine tuned to 11.6 , smooth to shoot .
BTW i had paid $$$to have mine tuned to 11.6 , smooth to shoot .
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FWIW, My HW95L .22 from AoA is 17 FPE after I installed an ARH kit & Vortek seal due to dieseling caused by the factory over oiling/greasing because of lack of experienced folks due to the China Virus. Does your rifle have "USA" stamped into the barrel? Did you get a chance to chrono the rifle to verify the AoA numbers? Good luck and I hope you enjoy your new HW air gun.
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In 177 the 95/98 should be about 15 fpe. They are often higher when new because it's quite common for them to diesel excessive lube.
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I'm not sure about those numbers from straightshooter. went went back thought all my records. from new to. ARH spring. it's a solid just under 15 FPE HAVE not check new Vortek spring yet letting new spring an seal settle in a bit. ( maybe tomorrow ) with a 8.44 gr AA pellet
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New out of the box 98 here . A lot stronger but no jsb 8.44 used .
www.airgunnation.com
Maybe run to Walmart and grab a tin of cphp and crony them and see if you get a big jump.
Hard to find untuned new factory results.
Weihrauch HW98 Out-of-the-Box Comprehensive Performance Review
I have several great spring rifles, and have felt that a break barrel could never duplicate the accuracy of my under levers, just because of the general concept of the lock-up. Recently, I acquired an FWB Sport, and posted an on-line review after Motorhead tuned it. Then, my friend Pat (PMG)...
www.airgunnation.com Maybe run to Walmart and grab a tin of cphp and crony them and see if you get a big jump.
Hard to find untuned new factory results.
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I'm good with the 11.7 if it's due to a non-fac spring. AoA is telling me it's a full power export and that power level is correct though. That contradicts most of what I'm finding.
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Yes, has the USA stamp on the barrel. I'll chrony some pellets today. I hadn't shot it yet thinking I might need to return if there was an issue beyond the possibility of a UK spring landing in a USA export.
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I have some of those, but don't shoot them. I'll chrony a few pellets and see what I come with. I was hoping AoA had a reliable chronograph they were using!New out of the box 98 here . A lot stronger but no jsb 8.44 used .
Weihrauch HW98 Out-of-the-Box Comprehensive Performance Review
I have several great spring rifles, and have felt that a break barrel could never duplicate the accuracy of my under levers, just because of the general concept of the lock-up. Recently, I acquired an FWB Sport, and posted an on-line review after Motorhead tuned it. Then, my friend Pat (PMG)...
Maybe run to Walmart and grab a tin of cphp and crony them and see if you get a big jump.
Hard to find untuned new factory results.
Upvote 0