Beeman P1... up to snuff?

[Breeze]

Early P1 from the Santa Rosa era in .20
Using a jsb 13.43 I cronied it at an average of 320fps. With a spread between 329 and 309fps. On line specs say up to 500fps.
The pistol has been in deep storage for decades!
Will not bust a beer bottle at 10 feet.
Attached is what happens when shot at said beer bottle.
Shot cycle is smooth and accuracy is spot on.
I did put some Tune-in-a-tube on the spring.
Keep shooting it and hope to 'wake' it up?
Put a couple drops of silicone oil to the piston seal?
Or is this completely normal?

 

[Breeze]

 

[beerthief]

just read about and PA said two cocking levels , maybe your on low ?

 

[nervoustrig]

A couple of users in the PA reviews indicated getting 480 - 500fps in the .20cal version with an 11.4gr pellet. That’s over 6fpe versus the 3fpe you’re currently getting so something seems amiss.

 

[.20calguy]

My P1 had a half cock position.
I never used the half cock, because it shot a completely different impact point, than a full cock.
My P1 was a preorder from drawings that Beeman mailed me, before the gun was available. There were no pictures just that drawing. It was in the first shipment over.

 

[Breeze]

A couple of users in the PA reviews indicated getting 480 - 500fps in the .20cal version with an 11.4gr pellet. That’s over 6fpe versus the 3fpe you’re currently getting so something seems amiss.

I'm wondering if I used the 11.4's would I gain 3fpe?
I am using the high power!

 

[beerthief]

yup , think something is amiss .

 

[PEP3]

These are the numbers from my .22 on high power with 11.9 Hobbys. Shoot it some to get it heated up and dry fire it twice, that should help.

 

[.20calguy]

I'm wondering if I used the 11.4's would I gain 3fpe?
I am using the high power!

Do you need the higher velocity?
My greatest prerequisite is always accuracy.

 

[.20calguy]

These are the numbers from my .22 on high power with 11.9 Hobbys. Shoot it some to get it heated up and dry fire it twice, that should help.

View attachment 364509

Don't ever dry fire a P1, HW45. Its a springer, and it depends on a load to cushion the piston.
That piston would slam into the back of the gun, heading your direction.
The HW75, can be dry fired. It's a single stroke pumper.

 

[PEP3]

Don't ever dry fire a P1, HW45. Its a springer, and it depends on a load to cushion the piston.
That piston would slam into the back of the gun, heading your direction.
The HW75, can be dry fired. It's a single stroke pumper.

You need to do further research sir.

 

[.20calguy]

You need to do further research sir.

Maybe so , but what I said still stands.

 

[Modski66]

Nope, @PEP3 is correct.
The PTFE seal on the P1 can be settled into the shape of the cylinder by dry firing a couple of times.
Unless of course it has an Aussie parachute seal fitted...

 

[.20calguy]

Nope, @PEP3 is correct.
The PTFE seal on the P1 can be settled into the shape of the cylinder by dry firing a couple of times.
Unless of course it has an Aussie parachute seal fitted...

Ok Im going by the Beeman Wiehrauch, info from the early 90's. Before mine was stollen. So if there is new technology fine, but I wouldn't ever dry fire a springer.

 

[Breeze]

I've seen the Beeman recommendations.
I have seen the results of way to many springers dry fired!
Y'all think over a 100 rounds should have brought it back to life?
If I take it to the dump...it HAS to bust a beer bottle!

 

[beerthief]

sounds like a rebuild is in order if it is supposed to shoot a bit faster .

 

[Modski66]

Ok Im going by the Beeman Wiehrauch, info from the early 90's. Before mine was stollen. So if there is new technology fine, but I wouldn't ever dry fire a springer.

Right, I am going to humbly wind my neck back in...
Weihrauch have never advised to dry fire the P1/HW45, it might have been a Beeman technician on Pyramyd Air some years ago.
Just glad I fitted an Aussie seal to mine and don't need to think about it.

 

[PEP3]

Right, I am going to humbly wind my neck back in...
Weihrauch have never advised to dry fire the P1/HW45, it might have been a Beeman technician on Pyramyd Air some years ago.
Just glad I fitted an Aussie seal to mine and don't need to think about it.

Ouch! Sorry, just trying to help. I have never taken advice from those idiots at PA btw.

 

[marflow 777]

so, did anyone miss the part the pistol has been sitting for DECADES, would you just expect the pistol to shoot up to spec after just sitting for 20 plus years
it needs all the soft parts replaced and maybe that would help

and dry firing right or wrong will not help, new seals might

 

[MMCM13]

I have seen the advice to dry fire the pistol as well, in more than one place. Here is a link to info on it. It is tested and refurbed in this blog, there are several results for HW45/P-1 review and service.

The Beeman P1 air pistol: Part 1 | Pyramyd Air Blog

by Tom Gaylord Writing as B.B. Pelletier Beeman P1 air pistol. This report covers: Lots of reports What is the Beeman P1? HW45 Three calibers Good 1911 trainer Two power levels Adjustable sights Adjustable trigger All metal PTFE piston seals Overall evaluation As I was packing up at the 2017...

www.pyramydair.com