P1 .177 accuracy

I honestly would not bother with that tune kit. The gun is better left stock. I have proved it time after time. The original tuner of this gun since its advent....Some people incl. the maker of that kit, asked my advice and then developed the kit, but it missed the vital aspect in order to keep his production costs down. This is that not all guns benefit from the fitting of plastic Top Hats.. The kit should have incl. a steel Top hat. You need the weight in the piston but do need to arrest the muzzle end of the spring...

The key with the HW45 making power, is getting the pellet out faster before the comical recoil starts. The shot cycle of the Delrin kit, feels more damped sure, but it is slower by 40 fps to 50 fps...Plastic Top hat, in my gun proved less accurate than with a 15 gram weight because its velocity is slower, even if it did feel a nicer cycle.

To make the most power, it needs the long guide down inside the piston like what Johnny Piston has his ..(look at the groups he is making with it) .However, it needs the other end of the mainspring supporting in some way... I am trying to come up with something simple for you guys (without Lathes) to be able to arrest the mainspring at the other end. (at the muzzle end) With the mainspring unsupported at that end, the mainspring life is shortened, it bends and it twangs. It needs some sort of support at the distal end. This is the the only benefit to that kit.

Leave me with it and i will come up with something for you. I am thinking in terms of a drop in slug, or dowel that is a reasonable slide fit into the mainspring, arresting the mainspring from flailing around and canting over at that end, possibly locating it in the end plug hole somehow. You might need to drill hole through this dowel to allow the fitting of the cross pin. Whatever it is, it will need to be easily sourced off the web, being the main problem....but leave it with me...

For those with lathes. You can can take 20mm off the length of the long guide, which allows the fitting of a solid steel Top Hat of 20mm length... Left solid, it will make 20 grams (power starts to fall after 25 grams) which I discovered is the optimum for making 600 fps with Hobby pellets. The existing guide can then be placed muzzle end...

 That is the end plug i am talking about. It has a hole through it to locate a stud for the mainspring to fit onto. There are lots of options here. We could simply drill out the hole to the same diameter of the inner diameter of the mainspring, or not drill out the hole and sleeve the peg. ...but i need to find commercially available parts so that the unskilled can do it themselves. 

Thanks buddy ....nice shooting ...again.

You are a bit like me in that you have gained so much confidence in your rig that the car wind screen may as well be yards away. Lol..

I wish I shot that well without the wind. Is there a secret to holding the P1?

Johnny Piston shows you in one of his videos....light hold...dont fight the gun.

This is good advice ....but also repeatability. Whatever method you choose, it must be replicated each time you pick it up...right down to sticking your lefthand thumb down the side of the gun can alter impact. So...if you like sticking your thumb down the length of the gun...its fine, but do it every time...dont move it about and expect the same POA

That is some good information ,shooting and a target to achieve.

I have Santa Rosa model,I like the small "kick" it gives.

Thinking about getting some finger groove target grips for mine.

I love shooting these guns.

I have taken more than a few rats with mine.

Key is forget plastic kits, let em kick….at the power they can achieve as designed OEM …and learn to shoot em instead…..

Several years ago i came to the conclusion that pellets getting out the gun fast at peak power, probably left the gun before the recoil started anyway, making the kits mute ….the kits just make the cycle feel nicer in the hand, but its a gun, not a drinking cup….just shoot it like.

I did get a slight rise in consistency by arresting the spring at the distal end of the piston at the muzzle end of the gun, using a short piece of turned steel sat on the end plug…..but you can live without it if you lack the skills to do it..

I found that my eyes were to old for open sights, I solved that problem. all of my pistols are very accurate.

I have own a hw45 in 20 cal that just would not shoot that accurate and after that I gave a p11 a try in 22 cal which was better....I always thought a 177 p1 would be the ticket so maybe someday