Sir Shots Alots Chaser hpa conversion

[miksatx]

Shots Alots regged at 1100psi 15 cu in 4500 psi cf bottle. I'm down 3050 psi on my bottle now.

[miksatx]

Now at 2900psi.

[splitbeing]

What's the reg set at?

[miksatx]

What's the reg set at?

1100psi.

[splitbeing]

Alot more shots to go!

Any guess how high the ES will be by the end?

[miksatx]

Alot more shots to go!

Any guess how high the ES will be by the end?

Lol no idea! Seems to be doing pretty good for a throw together parts gun. Am down to 2000psi

[splitbeing]

[chuckling]

Five hundo and countin'!

[miksatx]

And counting!

[Bentong]

😁😁 you need a lot of pellets before you pump it again

[miksatx]

😁😁 you need a lot of pellets before you pump it again

Bought 3 tins of crosman 7.9 HP for this shoot out lol.

[rsterne]

The gun starts working properly at about 2900 psi tank pressure.... Above that your velocity is increasing.... Check out the grey line on this chart.... The bump in your velocity is however occurring below 2900 psi tank pressure....



You should either increase the hammer strike (which will increase the velocity and decrease shot count).... or decrease the setpoint pressure (which will decease power and increase shots, which doesn't seem desirable in your case).... Aim for the yellow or orange lines....

Bob

[miksatx]

The gun starts working properly at about 2900 psi tank pressure.... Above that your velocity is increasing.... Check out the grey line on this chart.... The bump in your velocity is however occurring below 2900 psi tank pressure....



You should either increase the hammer strike (which will increase the velocity and decrease shot count).... or decrease the setpoint pressure (which will decease power and increase shots, which doesn't seem desirable in your case).... Aim for the yellow or orange lines....

Bob

Hi Bob
My adjustable hammer spring adjusting not quite that adjustable have to remove the stock and a few other things. So I won't be doing any adjusting.
I thought I might get 1000@ 6fpe.

[splitbeing]

What's the pressure at now?

[miksatx]

What's the pressure at now?

Just about finished.

[miksatx]

It's  done lol!

[splitbeing]

Aw man!!... I was rootin' for a thousand!! [chuckling]

[miksatx]

Aw man!!... I was rootin' for a thousand!! [chuckling]

Me too dang it lol!

[splitbeing]

Can the reg setpoint be lowered?  It was soooo close!!!

[miksatx]

Can the reg setpoint be lowered?  It was soooo close!!!

It a big spring with a couple shims if I remember correctly lol. Not sure think I might have a 850psi first strike regulator. Come to think of it that reg is a 3000 Max fill pressure.