Fancy A 99S In .177

[charlie caller 3,654]

This stuff is the business mate http://www.ebay.co.uk/itm/Muc-Off-Dry-PTFE-Chain-Lube-50ml-/261808569710?hash=item3cf501bd6e

[bernie67 35]

thanks for that link charlie.took the gun to local engineers to see if they would be able to cut and thread the barrel,will cost £45,which i thought was good so have to strip it down next week as he only wants barrel.

[bernie67 35]

so decided to put a few pellets through the barrel this afternoon just so i have some record of what is was doing before i start mucking about with it next week,10 shot string

563.2

564.0

563.9

569.4

567.0

566.2

560.6

565.7

563.7

566.7

so an 8.8 spread and av of 565.0 and i think 10.4 at muzzle if i am not wrong with jsb 5.52

on another note must say I can really notice the differance between my sfs 97 kt and the untouched 99s.hopefully it will get better once i start messing around with it.

[jonnie bravo 572]

That is rather consistent! Very nice. Try tighter and looser pellets too. I had some really wild variations in power when I played around with this.

[bernie67 35]

that was all i had to put through it at the time will try to find best pellet once i have played around with it.

[Rimfireboy! 1,463]

Tried a few this morning in the hw99. H&N lead ball weighed in at an average of 15.1 grains and 465 fps @ only 7.25 ft lbs energy. Accuracy was better than I expected at just over an inch at 28 yards. RWS Super-H-Point weighed 14.7 grains and an average velocity of 600.1 fps gave me 11.76 ft lbs energy. Accuracy with these was less than an inch. The champions I tried were hitting the same mark some of the shots. The first two pictures were H&N lead ball top and RWS super-h-point below at just over 30 yards.

[Rimfireboy! 1,463]

The lead balls are two different weights @ 15 & 16 grain 5.5mm & 5.6mm. I'll give the 5.6's a try in the hw99 next to see if there's any descernable difference.

[jonnie bravo 572]

I have found the H points very consistent too, nice work

[Dan Dare 19]

This is a great thread - full of really useful and interesting info. Thanks all.

[bernie67 35]

how do i upload photos from computer into this thread anyone there to help?

[bernie67 35]

thanks rimfireboy not to clever with computers.

 

so got the barrel back from engineers had it cut to 10 1/2 " and threaded .given them the piston to polish will pick that up on Monday.also bought a vortek drop in kit for it.have a couple of questions when striping gun there was no top hat on spring is that right ?

 

 

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[charlie caller 3,654]

Yep no top hat as standard, take your time sizing your vortek seal mate, a little at a time, until its a nice fit that slides up the cylinder with a bit of pressure, they are brilliant, make a massive difference, I will put one on every Weihrauch I tune from now on

[bernie67 35]

will do charlie, question for you charlie do you polish compression chamber or just clean it out before fitting piston.?

Edited August 23, 2015 by bernie67

[Rimfireboy! 1,463]

I polished the inside of the cylinder and the piston on mine. How much did the barrel job cost Bernie? I might get mine cut down and screw cut.

[charlie caller 3,654]

will do charlie, question for you charlie do you polish compression chamber or just clean it out before fitting piston.?

No I prefer to just de-grease, and give it a damn good clean out, they usually look pretty good so I dont bother, having said that I cant see it doing any harm if you want to do it.