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I apologize if this has already been discussed. The Vortek website says that this HW97 HO kit will put out 1100 fps with 7.9 grain pellets. Is this a misprint or is this kit better suited for the bigger calibers? Does anyone have this kit installed in .177 and if so how is the performance and...

With my HW97k 12 fpe vortek kit installed. The crosman premier 7.9, h&n ftt 8.64, and jsb 7.87 all group really close to the same zero at 25 yards. The jsb exact 8.4 groups 1.5 inches low. Is that normal? They chrony with the most FPE and the lowest extreme spread and shoot the tightest group...

I belong to a gun club and they are pretty open about putting on different firearm competitions. Currently they only do Steel Challenge and cowboy shooting. They also do some Appleseed shooting thing. They have a 135 yard rifle range and a 50 yard rimfire/pistol range among other shorter...

On my HW97k the trigger adjustment screw loosens a quarter turn every 20 shots and is only finger tight. I got some vibratite to put on the screw. My question is when I remove the adjustment screw to apply the vibratite is any springs or anything gonna come flying out. I don’t want to ruin my...

I stripped out some 6-48 scope mount holes and need to drill out and retap the next size. My sight mount has counter sunk holes so need the flat heads if possible. I’ve looked on 2 dozen websites and can’t find 8-40 flat head machine screws. Here’s a picture of what one looks like:

I installed the Vortek 12 fpe kit today and did not put in the supplied power washers/preload washers and the first shot with 7.9 cpl’s (cardboard box) was 693 and the shots increased in speed to 753 fps by shot number 20 as it settled in. I would say the preload washers are absolutely necessary...

Newish guy here I rejoined the forum after a few months hiatus. I love the forum and have found so much useful information here. I installed the vortek kit today and I only fired 3 pellets so far and it’s dieseling pretty bad. I cleaned and deburred everything really well prior to the...

My name’s Jake, I’m a machinist from Ohio and I have 3 nice air rifles and a few beaters I don’t shoot. I have a HW97k .177, a HW50 hunter .22, and a Walther Terrus .177. I look forward to contributing what I can to the forum. I was lazy/down in the dumps for a while and haven’t shot any of the...