HW/Weihrauch New HW97K .177 Accuracy

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bzizzi373

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Jan 28, 2018
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PA, United States
I always wanted to try a HW97 in .177, after owning a TX200 in .22 the larger caliber springer isn't fast enough for my taste, I leave .22 and above for PCP's, that's just my personal experience. If you do buy a larger power springer with any kind of decent velocity it's too harsh to shoot and too much effort to cock. So back to the HW97 .177 I just purchased, mounted a Hawke 3-9 scope with two piece Sport Match mounts. Sighting in only took a couple of clicks to the left and elevation to my surprise was right on at 35 yards. So I started with several midweight pellets, gun really likes Crosman Premier 7.9g brown box, JSB Exact 7.87g and RWS Superdome 8.3g. Other pellets not bad but these three did the best. So next I chronied all three, the CP's were at 895, the JSB, 905 and the Superdomes 880 FPS. So, after shooting gun in I noticed groups opening up and checked stock screws, all were loose after less than 100 rounds, even trigger guard screws. So I snugged them up and accuracy returned, then again groups opened back up after 50 or so shots and screws loose again. So I did some research and read to use blue lock tight on screws but first harden the wood around stock screws with super glue, I used some Mercury Adhesive thin CA made in the USA of the highest quality, let dry, applied blue lock tight to screws, snugged everything back up and let sit overnight before shooting. So accuracy returned, screws remained tight and all looked good, then slowly after around 500 rounds groups opened back up but this time when I checked stock screws they were still tight. So I cleaned bore, wasn't bad at all, so I chronied gun again searching for the diminished accuracy and saw that the gun's velocity increased by 25 fps across the board. This thing is breaking in, now I have to either try some heavier ammo or tune the gun back a little.
 
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Congrats on the new toy! The 97K is a great gun. I'd stick to JSB 8.44gr or 10.3gr or the 8.64gr FTTs. It's bound to love one of those if not all of them.

Fyi, you don't need to Loctite those screws. Just keep checking them for the next couple of tins. As the wood compresses from tightening they'll eventually stop backing out
 
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Speed is way over rated for the purpose I shoot air guns. and I ONLY shoot Springers! But I'm using mine as working guns, not just to punch paper.

But don't get me wrong, If I want to do that, Ill take my PCP beater! My 54 Diana Air King Pro shoots over 22 fpe with AA 18 grain Diablos in 22 cal., and @ 35 yards well under a dime sized groups. Now on the other hand, with 14.6 grain FTT, it shoots 22.4 fpe just as well out 35, both pellets will group inside that dime in calm conditions when I do my part. But when I bust tree rats out of a tree hardly ever beyond 40 yards, that 18 grain Diablo from AA knocks them out of three with a definite WHOP! 90 fps slower, same accuracy and for hunting, my preference, speed is way over rated.

Now I have a highly tuned R10 in 177, a 910 fps with a 8.4 grain AA Diablo, rifle that shoots crazy accurate, right with a PCP once you learn how to shoot it. The Diana will to, but its so simple to shoot like a PCP even my 13 year old grandson can hit dimes with it out to 40 yards. Now that rifle is running at 15 fpe. I love this rifle, but for field use,,,, give me a 22. Then if a possum, raccoon, feral cat, ground hog, whatever makes itself my mark, I have enough energy and weight to make a clean, quick kill.

I gave up on the luggage it takes to shoot PPC's and all the maintenance that goes with them 20 years ago. pumps bottle's filters, compressors, etc, Ill take a tin a pellets, a springer,,, and see ya when I get back or run out of ammo, the air is endless.

But Id try a H&N Field Target trophy at 8.6 grn , or a AA Diablo Field at 8.4 grn and think it will be tough to beat either of those pellets in a 177 HW rifle, especially a 77K or 97K. they seem to prefer them for most folks. Feed it what it likes, you may never shoot that PCP again!!
 
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Sqwirl57 said:
PCP accurate but more fun!
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It is indeed fun, a tin of pellets and the gun is all that's needed, no hoses, tanks, compressors. I'm guessing gun will get even better and smooth out even more as I shoot. As the late Robert Beeman once said, these guns doen't wear out the more you shoot them they wear in.
No, I'm not going to install any kind of kit or do a tune, I think this is a great gun right out of the box, just needs broken in.
 
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longdog said:
Where did you find the "correct specs" for the stock bolts?......not that that's a big deal
I've never ran across them.
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They're posted in a few place.

Front screws 22.5inlbs
Big trigger gaurd screw: 44.5inlbs
Smaller, rear, trigger guard screw 22.5inlbs

They don't have to be exact but around there works well
 
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Is it dieseling? Smell burning oil? Dieseling will increase velocity and can diminish accuracy. I'd run 8.44 Exacts or 8.64 FTTs through it. Both are very good in the mid power Weihrauchs.

Flip flopping between pellet brands can have a negative effect on accuracy. Different brands use different lead alloys and its best to run at least 50 of a brand before evaluating accuracy. I'd also recommended either using nothing but Crosman or not using them at all. Crosman uses a lot of antimony which hardens the lead. The hard lead doesn't play nice with the softer lead brands.

Also 22.5 inlbs is the spec on the small trigger guard screw but IMO it's too much for the small thread. I go 15 inlbs on that one.
 
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Reading this thread made me wonder If my springers were tight , so I just checked as I havent used them In a while . Thanks for the heads up .
456y2.jpg
 
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Mycapt65 said:
Is it dieseling? Smell burning oil? Dieseling will increase velocity and can diminish accuracy. I'd run 8.44 Exacts or 8.64 FTTs through it. Both are very good in the mid power Weihrauchs.

Flip flopping between pellet brands can have a negative effect on accuracy. Different brands use different lead alloys and its best to run at least 50 of a brand before evaluating accuracy. I'd also recommended either using nothing but Crosman or not using them at all. Crosman uses a lot of antimony which hardens the lead. The hard lead doesn't play nice with the softer lead brands.

Also 22.5 inlbs is the spec on the small trigger guard screw but IMO it's too much for the small thread. I go 15 inlbs on that one.
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Gun had some dieseling the first 100 shots but has completely cleared up and my chronograph shows tight consistant velocities now.
 
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bzizzi373 said:
My HW97 has been pounding the strike zone with every shot, I love this gun, yea it's heavy but I'm 6'1" and 200 lbs and can handle the 97 just fine.
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People over exaggerate how heavy some guns are. I'm 5'7", 160lbs and my 97K is around 14lbs all scoped up for FT use. Not once has the weight given me an issue. If I was shooting it standing all day that would be different but I'm not and neither are most people
 
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