Help Needed. 1935 Benjamin Franklin Air Pistol Repair

[Mobiasstrip]

Just tried with Chrony. 360fps average with three 8.18 g pellets which I calculate to 2.35ftlbs Very happy with that for a 1935 brass airgun :-)

[--ped--]

I've not chrono'd mine tbh was that on 6 pumps

[Mobiasstrip]

The 360fps was measured but I need to double check the grain of the pellets. 3 pumps is the max I give it.

[--ped--]

owners manual recommends 6 as a max i'll dig mine out and see what it does on 3 and at 6 -or what ever pumps it takes before valve retains air as I think the spring may have softened over the years

[magicesperanto]

Impressive indeed, both the fine restoration and performance.

Just curious, do you pump it "by hand" or by pressing the pump rod onto a hard surface?

[Mobiasstrip]

I pump three times only - by pressing it against the carpeted floor. I think heavy pumping may have been part of why the joints failed.
Its vintage and I plan to use it but with TLC :-)

Checked re my last post and I was using Anglo Arms dome head that are 8.02grains when I chronied at 360 fps. So 2.31 ftlbs on 3 pumps. I'm happy with that.
Chasing a 122 to go with the 177.
Steve