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mecman

Hw35e sighting problem

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Having a problem with my 35 plus year old hw35e I get excellent groups with open sights at 30 yards but need scope now as sight not what it used to be ,i have tried two good quality scopes with same results it will put pellet on pellet for 3or4 shots then go haywire,thanks in advance for any replies.

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9 minutes ago, mecman said:

Having a problem with my 35 plus year old hw35e I get excellent groups with open sights at 30 yards but need scope now as sight not what it used to be ,i have tried two good quality scopes with same results it will put pellet on pellet for 3or4 shots then go haywire,thanks in advance for any replies.

hello, what scopes have you tried and type of mounts ?

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6 minutes ago, oldypigeonpopper said:

hello, what scopes have you tried and type of mounts ?

Hello,the first one was a hawke varmint 6-24 x 44ao the other one was also a hawke but slightly less magnification but still a good quality scope ,mounts are sports match, I’m fairly sure that there was no movement in either scope or mounts unless it was inside the scopes, thanks. 

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The problem is likely to be mount creep or movement, all recoiling guns need decent mounts but air guns in particular need careful thought  when it comes to making sure the scope stays in one place, if I’m not mistaken it should have a provision for using what’s called an arrestor block although in practice good one piece mounts are just as effective. 

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6 minutes ago, Hamster said:

The problem is likely to be mount creep or movement, all recoiling guns need decent mounts but air guns in particular need careful thought  when it comes to making sure the scope stays in one place, if I’m not mistaken it should have a provision for using what’s called an arrestor block although in practice good one piece mounts are just as effective. 

Thanks yes it has got provision for arrestor blocks it does have a bit of a kick to it,giving it a bit of a service at the moment polishing and debburing,any advice on best oil -grease when re-assembling,thanks.

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1 minute ago, mecman said:

Thanks yes it has got provision for arrestor blocks it does have a bit of a kick to it,giving it a bit of a service at the moment polishing and debburing,any advice on best oil -grease when re-assembling,thanks.

I used to spend hours playing with HW35’s, they’re so easy to service but one thing I would advise against is too much polishing inside the cylinder, conventional wisdom seems to be that they need some imperfections inside to perform best. I managed to “tune” mine beautifully to the stage it really was smooth and quiet, the trouble is the power dropped to 9 ft lbs 😝, not that it mattered because with careful stalking I still managed to head shoot plenty of rabbits with it.

It’s ages since I opened any springers up but back in the day someone recommended something (I think) called Comma grease which came in a toothpaste type tube, it was surprisingly effective in quietening the spring noise although these days your best bet is simply to order one of many excellent drop in kits which come with everything. 

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Moly grease and dont go mad with it. But do whatever hamster says as ive not taken one apart and cant give advice on internals 

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Have u looked at the barrel lock up leaver ?. See if its doing its job properly. 

If the barrel is moving slightly up down side to side  then the scope wont be the issue .this will also explain why u can achive good groups with open sights .

I had a similar issue with a hw 30  

Grouped with opens  but not with a scope  .

It was barrel wobble .

Edited by Ultrastu

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6 hours ago, Hamster said:

The problem is likely to be mount creep or movement, all recoiling guns need decent mounts but air guns in particular need careful thought  when it comes to making sure the scope stays in one place, if I’m not mistaken it should have a provision for using what’s called an arrestor block although in practice good one piece mounts are just as effective. 

hello, scopes are ok just get a decent one piece mount, with arrestor stud, put some tissue in thread hole and screw in but not to tight

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