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Hw77 25Mm Internals?


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The 25mm 97, so not a 77, obviously, but it was a mk1, so the longer version one could say... I found the lock time super quick, maybe snappy but in all honesty, it's didn't feel any different in every day shooting than my own 97 which is v glided @ 26 and generally, a beast. I don't really do anything to it nowadays, it's just bedded in so well, I darent take it apart again.

 

All this chit chat online, and there is a lot, chooning this and chooning that, and loads about that 25-26mm short stroking, (I'm assuming your on about the very early 77 which was as standard 25mm) really, unless your Dave pope himself, the average shooter doesn't really feel any difference. Let's be honest, two rifles, perfectly tuned, exactly tuned for the purposes of this comment say, one has a 25 short stroke, the other a standard 26, none of us would know which one is which. We wouldn't. There's lots that people say online about how they can tell the difference, but it's all in the head. "Shoot this, 25mm piston, should be really fast..." "oh, yeah, it's really quick" "now shoot this, 26mm..." "oh yeah, tad slower" really?! :)

 

Technically, the volume is less, naturally with a 25, high 30's. 26 is low 40's I think, so maybe, thinking about it, some may feel a difference, but I didn't in all honesty.

 

With regard which kit. V-Mach.

 

Just thinking, it does depend on caliber FF.

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Is there a markedly noticeable difference in 25 and 26mm piston wotsits? Really that much? Well, in my humble view, it's all about how well (or not) it all performs and comes together where it matters, out in the fields, that determines how good the rifle you have really is.

 

For me, the best underlever spring powered air rifle of all is the HW77. In either .177 or .22 calibre. I've had TX200s in both calibres and they just didn't match the .22 HW77 full length rifle I own, for accuracy at long ranges or handling balance. They were just a lot prettier, TX200HC in .177 is blisteringly accurate mind, but that's about all.

 

My '77 isn't especially tuned or fitted with a tuning kit. :hmm:

 

A friend of mine who knows his spring rifle stuff, fettled and polished the internals, cleaned and deburred the Weihrauch spring and handed it back performing beautifully smooth and consistently powerful at 11.7 Ft/lbs energy. I can load a pellet, put a pellet on the top of the scope and fire the action; the pellet will move only slightly but remain on the top of the turret cap. Not quite recoiless, but almost. And as accurate as a PCP.

 

It's all factory standard internals. I don't know whether or what size the piston/stroke bollocks is. All I know or really care about, it has one that works, it comes out of the storeroom I have, warm it up and zero it at 35-metres till I can put 20 shots into a penny-sized hole at that zero range and we go out hunting. It wallops hard and humanly quick and it will drop a rabbit clean out to any range I can be comfortable with. A little hold under for sub 30metres ranges. A little over for further distance.

 

I cock and load it as soon as I arrive at my shoot and remove it from the slip; and leave it cocked ready to go to work. Never found any power loss with leaving it cocked for over an hour or two till a rabbit, pigeon or squirrel pops up. Bop! Over with!

 

Nice and simple and understandable work!

 

I can't recommend this rifle more than enough to anyone wanting a quality spring rifle to get out and get hunting with!

 

ATB.

Simon/Pianoman

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TBT drop in kit, Vortek piston seal, polish the piston,spring ends, the piston rod where it meets the trigger sear, lightly lube the spring with Moly paste or red rubber grease, dri slide on the piston, and outside of comp tube, dab of pure silicon oil on the piston seal, set power to 11.5 ish with a light pellet, job done, a cracking accurate hunting rifle.

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Cheers guys...

 

Id already done my 97 with a tbt drop in kit, spring and short stroke extension.

 

As above post is what ill do no doubt.

 

Had a good read through richard collets thread on here its great and really make me want to do some more tinkering to another rifle.

 

What about barrel bend in these long rifles and the longer 97 (thats the model i have) but with 26 mm internals but a later serial number 1507... i did start a thread about it, but its a head scratcher for sure...

 

FF

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The only way the barrel will bend, is if you let the underlever slam back into the detent block under full tension of the spring. I've had both my HW77 and HW97K for some good numbers of years now and neither have suffered anything remotely like you could call a bent barrel.

 

Both perfectly straight and true. :thumbs:

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