(1) FWB Model 2 manual says not to turn screw #9, the velocity adjustment, so does not tell you which way to turn it to increase velocity. I have about a dozen of these guns and clockwise turning of screw #9 seems to make some go faster and some slower. Anyone know for sure?
(2) is 150 m/sec (~490 ft/sec) in fact the best average velocity, as the manual states.
(3) how do I know if the velocities given by my Chrony unit are accurate or not?
FWB Model 2 velocity adjustment
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Silvershooter
- Posts: 201
- Joined: Fri Jan 06, 2012 9:22 am
- Location: North of England
Re: FWB Model 2 velocity adjustment
Wow, "about a dozen", I have a couple of FWB C25s, the manuals appear to be the same as it says the same thing about screw 9. I will ask the Q on a UK BB where there is a poster who is quite knowledgeable on the these FWB COs pistols.PaulB wrote:(1) FWB Model 2 manual says not to turn screw #9, the velocity adjustment, so does not tell you which way to turn it to increase velocity. I have about a dozen of these guns and clockwise turning of screw #9 seems to make some go faster and some slower. Anyone know for sure?
(2) is 150 m/sec (~490 ft/sec) in fact the best average velocity, as the manual states.
(3) how do I know if the velocities given by my Chrony unit are accurate or not?
I have left my velocity screw alone. BTW The later model C25 I have has a ventilated barrel and uses quite a more CO2, only giving about 140 shots per fill.
Sorry don't know anything about chronys.
This is what I do
Turning screw No. 9 all the way clockwise the Mod. 2 shoots the hardest/fastest @ 525 fps with 7.0 grains pellets.
Backing up (anti clockwise) the No.9 screw ONE COMPLETE TURN, will reduce the speed by approximately 25 fps down to 500 fps.
At this point, looking at screw No. 9 (with a torch if necessary), one may notice the the cross slot is at at angle. Turning it (slowly) a tad more anti clockwise it will level horizontally.
Stop.
Leave it there.
That's the point at which my FWB Mod. 2 (054XX) shoots best. The velocity at that point would be approximately 490 fps with 7.0 grains pellets.
I tried other velocity settings (all the way down to 425 fps -- achieved by completing the anti clockwise turn of screw No. 9 until it stops), but I got flyers every now and then.
The ~490 setting on my Mod. 2 seems to work best (and I enjoy the mild kick, as well).
Hope this helps.
Backing up (anti clockwise) the No.9 screw ONE COMPLETE TURN, will reduce the speed by approximately 25 fps down to 500 fps.
At this point, looking at screw No. 9 (with a torch if necessary), one may notice the the cross slot is at at angle. Turning it (slowly) a tad more anti clockwise it will level horizontally.
Stop.
Leave it there.
That's the point at which my FWB Mod. 2 (054XX) shoots best. The velocity at that point would be approximately 490 fps with 7.0 grains pellets.
I tried other velocity settings (all the way down to 425 fps -- achieved by completing the anti clockwise turn of screw No. 9 until it stops), but I got flyers every now and then.
The ~490 setting on my Mod. 2 seems to work best (and I enjoy the mild kick, as well).
Hope this helps.
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Silvershooter
- Posts: 201
- Joined: Fri Jan 06, 2012 9:22 am
- Location: North of England
My Mod. 2 shoots anything ever made well, if I do my part too.
The older H&N blue tin lid which were 6.9 grains were/are the best suited for mine with the 7.0 grains by RWS Nobel (Hobby, Club or R10 lights -Pistol), coming a close second. Pistol Meisters shoot fine but are twice as expensive as the Hobby and only a fraction cheaper than the R10, so expensive pellets are not necessary.
Also, JSB green lid Match @ 8.33 grains are excellent in my Mod. 2, albeit very expensive lately.
I have settled on the RWS Nobel Hobby 7.0 grain which do the job just fine and won't break the Bank.
The older H&N blue tin lid which were 6.9 grains were/are the best suited for mine with the 7.0 grains by RWS Nobel (Hobby, Club or R10 lights -Pistol), coming a close second. Pistol Meisters shoot fine but are twice as expensive as the Hobby and only a fraction cheaper than the R10, so expensive pellets are not necessary.
Also, JSB green lid Match @ 8.33 grains are excellent in my Mod. 2, albeit very expensive lately.
I have settled on the RWS Nobel Hobby 7.0 grain which do the job just fine and won't break the Bank.
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Silvershooter
- Posts: 201
- Joined: Fri Jan 06, 2012 9:22 am
- Location: North of England
I was using RWS Hobbys for a while but found that they varied in size, some were quite tight in the breach. I was finding a variation in muzzle flip and recoil which I associated with the size variation.
So I am now using R10 7 gr , although 2 X the price of the Hobbys, but the size is more exact at 4.49 or 4.5.
So I am now using R10 7 gr , although 2 X the price of the Hobbys, but the size is more exact at 4.49 or 4.5.
True. The Hobby resist fitting, while the R10 (especially the 4.49), slide straight in but I can hardly justify the double cost of the latter.
On a rainy Sunday I may sit down and select 60 Hobby for a match; weighting them is one way of sorting, while fitting them in a clear BIC pen biro tube and keeping them all at the same mark is another.
I have, however, discovered that it is 99% my own fault if I get the shot bad.
Using the most affordable pellets around and concentrating on wrist, trigger and followup uniformity may be beneficial in the long run while allowing plenty of shooting.
I forgot to mention that I have the Kurz (Short) version of the Mod. 2 and I get some 180 top shots per cylinder.
Best regards.
On a rainy Sunday I may sit down and select 60 Hobby for a match; weighting them is one way of sorting, while fitting them in a clear BIC pen biro tube and keeping them all at the same mark is another.
I have, however, discovered that it is 99% my own fault if I get the shot bad.
Using the most affordable pellets around and concentrating on wrist, trigger and followup uniformity may be beneficial in the long run while allowing plenty of shooting.
I forgot to mention that I have the Kurz (Short) version of the Mod. 2 and I get some 180 top shots per cylinder.
Best regards.
[quote="Silvershooter"]I was using RWS Hobbys for a while but found that they varied in size, some were quite tight in the breach. I was finding a variation in muzzle flip and recoil which I associated with the size variation.
I just don't believe it. Muzzle flip and recoil? Come on!
If you don't like the Hobby pellets, try the RWS Basic. In my testing they were sometimes very accurate and I don't hesitate to use them as a match pellet. They're a little cheaper, too.
I just don't believe it. Muzzle flip and recoil? Come on!
If you don't like the Hobby pellets, try the RWS Basic. In my testing they were sometimes very accurate and I don't hesitate to use them as a match pellet. They're a little cheaper, too.
Another brand that I have tried and found that the FWB Mod. 2 likes are the 7.0 grains H&N Sport (olive green lid), which may still be found at a good price but only in a package of 10 tins or 20. When I run out of RWS Nobel Hobby and Club at some point, the H&N Sport may be in for a long term test.
You might want to look at some of my pellet tests, here:
http://www.targettalk.org/viewtopic.php?t=30593
http://www.targettalk.org/viewtopic.php?t=30593