Beeman P17 Cocking force adjustment

[graycrait]

Beeman P17 Improvements | Blog | Pyramyd AIR

Today reader Vana2 whose name is Hank, shows us how he modified the Beeman P17 pistol to make it easier to pump.

www.pyramydair.com

I may have been the last to see this but I have not seen it posted on AGN.
As a Noob who picked up a P17 on a whim I found this interesting.

 

[Sawney Bean]

Yeah, the only major downside of the P17 IMO is the cocking effort. Other than that it’s a fantastic pistol for the money.

Mines currently leaking from the exhaust valve, so I need to tear it apart anyway. Maybe I should drill out the piston a little while I’m in there.

 

[marflow 777]

i read the thread so it was just one hole to make this cocking difference ??????????
it would fill with lube over time so maybe a slot might be better, so the lube was pushed to the side off the face

 

[Sawney Bean]

i read the thread so it was just one hole to make this cocking difference ??????????
it would fill with lube over time so maybe a slot might be better, so the lube was pushed to the side off the face

I don't know about that. How often do you lube your P17? I actually wonder how much the pressure was lowered simply due to excess lube being cleaned out of the cylinder before reassembly.

 

[MikeVV]

Good thing it cost $45. I'd be really...pissed !
Mine's currently sitting in a box on the other side of the room.

Mike

 

[marflow 777]

mine doesn't get used because of the effort needed to close the cock handle but i might just take mine apart for a little drilling

 

[graycrait]

mine doesn't get used because of the effort needed to close the cock handle but i might just take mine apart for a little drilling

Why not? If it "goes south" haven't lost much and may gain a lot, throw the dice

 

[marflow 777]

well the R&D has been done already in the thread that was added above so that is not a problem
now i have read and know people that do the opposite by ringing out every bit of air in the cylinder and never have i read that the pistol was harder to cock
it is an option for those that have the skills to make their pistol more user friendly

 

[Frank in Fairfield]

Mine was given to me.
I shot it today.
I have no difficulties with it.
Does it use the same holsters as the Glock 17?
I am 79..

 

[sekiar]

Good thing it cost $45. I'd be really...pissed !
Mine's currently sitting in a box on the other side of the room.

Mike

I’m not even sure where mine is and don’t care! Charles

 

[Sawney Bean]

Mine was given to me.
I shot it today.
I have no difficulties with it.
Does it use the same holsters as the Glock 17?
I am 79..

No. Its dimensions are much larger than a G17.

They’re just a cheap air pistol that happens to be surprisingly accurate.

 

[graycrait]

@Frank in Fairfield , If I were going to guess I bet a Hi Point 9mm holster would work.

 

[WobblyHand]

I bought a few of these some years back, when Amazon discounted them to $7.50 each. I converted one of them to a 22, using a spare 1322 barrel. I used epoxy on the piston top to increase the compression and also machined a ring in the piston to hold oil soaked felt. It's my favorite P17, since the ammo is a lot easier to handle. Cocking effort is the same. Shoots a hair under 400 fps with 14gr pellets.

Initial cocking takes some effort. I usually rest a portion of the gun on something to make it easier. After a while it becomes second nature.

Even at list price, stock P17's are a lot fun. They are good shooters with a decent trigger. No, they are not serious target pistols, but they are fun to plink with and refine your skills with a low outlay of cash. Great to introduce new people to the sport.

 

[graycrait]

I did the 3/16" x 1/4" deep drill the face of the piston trick and it is a huge improvement in cocking effort. It ran about 385FPS with some cheap pellets.

 

[Sawney Bean]

I did the 3/16" x 1/4" deep drill the face of the piston trick and it is a huge improvement in cocking effort. It ran about 385FPS with some cheap pellets.

That’s a pretty small hole to make such a significant difference. One thing I noticed the last time I had mine apart was how much grease was concentrated on the piston and cylinder. I’m really suspicious that removing the extra grease might open up as much space as drilling the hole did.

 

[graycrait]

@Sawney Bean , I didn't notice a lot of grease in mine. I did clean it out but most of it was at the bottom of the cylinder and even then not that much. I'm not a physics or air guru so now I wonder where the ease in cocking meets a serious loss in accuracy seeing that this thing is a $40 plinker any-who.

 

[longdog]

I did the 3/16" x 1/4" deep drill the face of the piston trick and it is a huge improvement in cocking effort. It ran about 385FPS with some cheap pellets.

So, what was the FPS before the mod with the same pellets?

 

[graycrait]

So, what was the FPS before the mod with the same pellets?

I don't remember.