FWB 80 pellet velocity

Manuel · Post by **Manuel** » Wed Dec 07, 2011 5:00 pm

I measured pellet velocity for my FWB 80 for after it was reconditioned at Pilkguns. For 25 shots, the average was 399 fps with a standard deviation of 5.2 and spread of 19 fps.

Any other forum members who can post velocities for their FWB 80 for comparsion with these numbers?

(I used a ProChrono at 5 feet and very old Beeman HN match pellets)

The airgun still shoots better than I can!

I had never measured velocity before so I have no comparisons with function over the 30 something years I have been using it.

kevinweiho · Post by **kevinweiho** » Wed Dec 07, 2011 7:34 pm

Manuel wrote:I measured pellet velocity for my FWB 80 for after it was reconditioned at Pilkguns. For 25 shots, the average was 399 fps with a standard deviation of 5.2 and spread of 19 fps.

Any other forum members who can post velocities for their FWB 80 for comparsion with these numbers?

(I used a ProChrony at 5 feet and very old Beeman HN match pellets)

The airgun still shoots better than I can!

I had never measured velocity before so I have no comparisons with function over the 30 something years I have been using it.

I also have a FWB 80, and it shoots higher than 399 fps.

Did the reconditioning include changing all the seals and the two mainsprings, and can your pistol shoot single hole groups at ten meters?

Did you also try other pellets to see if the speed goes up?

Manuel · Post by **Manuel** » Wed Dec 07, 2011 9:26 pm

Mainsprings and seals were replaced (professional job, not my work).

I don't have any other pellets at the moment but do plan on trying others. Probably shouldn't have bought as many of the pellets I have as I did.

I can't hold well enough to shoot a one hole group! My scores are the same as always-NRA expert category. So I can't see any difference in accuracy after reconditioning but it had to be done because the seals deteriorated.

I had always thought the velocity was higher on these target pistols but really don't know because I had never checked. All of this leads to why I asked the question about velocities forum members might have measured.

I guess the additional question now is if old pellets develope enough oxidation on the surface to reduce the velocity?

kevinweiho · Post by **kevinweiho** » Thu Dec 08, 2011 3:06 am

Manuel wrote:Mainsprings and seals were replaced (professional job, not my work).

I don't have any other pellets at the moment but do plan on trying others. Probably shouldn't have bought as many of the pellets I have as I did.

I can't hold well enough to shoot a one hole group! My scores are the same as always-NRA expert category. So I can't see any difference in accuracy after reconditioning but it had to be done because the seals deteriorated.

I had always thought the velocity was higher on these target pistols but really don't know because I had never checked. All of this leads to why I asked the question about velocities forum members might have measured.

I guess the additional question now is if old pellets develope enough oxidation on the surface to reduce the velocity?

I can't shoot single hole groups neither, instead I use a bag rest or vice.

Maybe when you shoot more pellets through the pistol, the new piston seal will wear in and eventually the velocity should increase.

An airpistol shooting around 500 fps should completely flatten a wadcutter pellet when it hits a flat pellet trap at ten meters.

If your pellets are oxidized (having a white coating on them) they will not shoot precisely and will somewhat decrease the velocity.

Instead of discarding the oxidized pellets, use them in an inexpensive pistol of rifle for informal plinking.

Rover · Post by **Rover** » Thu Dec 08, 2011 12:24 pm

Sounds low to me. Try some Hobby or Basic pellets; they're light. I used to compete using Hobby since they were so accurate in my FWB65.

Beeman used to advertise 525fps for that gun, but I don't know if anyone ever reached that velocity except Beemans copy writer.

BEA · Post by **BEA** » Thu Dec 08, 2011 12:39 pm

I would be more than happy to be wrong on this, but I would be very surprised if you could get 500 fps out of a spring gun. I used to have a model 65, and it seems to me that the velocity was quite a bit lower than the CO2 and CA pistols I have had since. Velocity can vary a fair amount depending on the pellets being tested, so I go along with Rover, try some different types.

Cones · Post by **Cones** » Thu Dec 08, 2011 12:42 pm

This was my findings from a couple of years ago.

http://www.cones-stuff.co.uk/Airguns/FW ... Chrono.jpg

Thanks

Mark

Manuel · Post by **Manuel** » Thu Dec 08, 2011 4:23 pm

I did find some other unopened tins of pellets to try.

A different tin (not previously opened) of Beeman H&N match (bright, no oxidation evident) had a average velocity of 414 fps (with SD of 5.9). This was only about 15 fps faster than the previously opened pellets (probably from the same batch and certainly from the same box) that were oxidized on the surface.

A not previously opened tin of H&N Diabolo-Kugeln gave a average velocity of 429 fps (and SD of 5.1).

Thanks to everyone for the feedback. I don't think I fully appreciated how pellet dependent the velocity is!

In retrospect I should have weighted the pellets also so I could look at that variable.

comwoaini · Post by **comwoaini** » Wed Mar 28, 2012 10:43 pm

Try some Hobby or Basic pellets; they're light.

______________________
i love water.peace.beautiful girl and ....

TargetTalk

FWB 80 pellet velocity

FWB 80 pellet velocity

Re: FWB 80 pellet velocity

Re: FWB 80 pellet velocity

Re: FWB 80 pellet velocity

FWB Velocity

Re: FWB 80 velocity