TargetTalk

Does anyone know what the factory velocity setting is for the Steyr LP2? I have found data for the LP10, but cannot find data for the LP2. Thanks.

almost all match airguns are set at about 150-160m/s so i would expect lp2 velocity to be set within this range.

Ghostrip,
Thanks for the information. I know that the factory setting for the LP10 is 155 to 160 ms, but was unsure of the setting for the LP2. The reason I ask is that my LP2 velocity averages 143 ms. I didn't want to increase the velocity until I knew for sure what the factory setting actually is.

i would suggest you test it from a vise. if it shoots one hole groups with the pellet you have i would not adjust the velocity. besides higher velocities mean more air is used leading to sightly less shots from a cylinder fill.

I'll put in a vise and check group size before making any adjustments. Thanks for the sound advice.

I put it in a vise and shot a 10 shot group at 10 meters that went into a ragged hole. Much, much better than I can hold for certain. I think that I will leave well enough alone and keep the present velocity setting.

JohnnyB wrote:I put it in a vise and shot a 10 shot group at 10 meters that went into a ragged hole. Much, much better than I can hold for certain. I think that I will leave well enough alone and keep the present velocity setting.

You could always increase it and re-test...

I'd be suprised if the LP2 was to be set any different than the LP10 - they'll be using the same barrels.

Rob.

lp10 also has stabiliser that has to use a small portion of the air to go backwards so the difference in v0 velocities could be from that. also lp2 does not have a ported barrel (if my memory serves me correctly).

You don't say if your LP2 has a full size barrel or a short one. Short barrel pistol have always a lower velocity.

Don't forget that the velocity changes with the pellet weight. Lightweight pellets (0.45g) have a higher velocity. Tests are usually done with heavier pellet (0.53/0.54g).

with his current settings (velocity adjustment, barrel length, pellet weight etc) the gun gets a ragged hole size groups from vise. so why mess up with a successful setup?

ghostrip wrote:with his current settings (velocity adjustment, barrel length, pellet weight etc) the gun gets a ragged hole size groups from vise. so why mess up with a successful setup?

How on earth is optimising the velocity going to mess anything up ??? And what is ragged hole size ? - 5mm, 6, 10???

For those who don't understand, the process is to shoot n shots, record the shot spread and the velocities and then adjust and repeat. You then return to whatever setting gave you the optimum result (smallest group size) - simples !

Rob.

for me a decent group is the one that every pellet hits the inner ten ring.
let me rephrase the "ragged" hole. if the groups with its current setup produces are x-ring why mess up a setup like this? i could understand a bit more testing if we were talking about rifles but for pistol the inner ten ring is bigger than the pellet.

All Pellets touching the inner ten ring? Thats huge, the group should be much smaller than that out of a vice the group should be a single hole slightly large r than a pellet. So the group should be around 5 mm maybe slightly bigger.

It's not difficult to get a one pellet (or a bit larger) hole with 5 shots.

Shoot a group with 25 or 30 shots for a more realistic picture. I have not seen ANY gun that will shoot pellet size groups that way. A good gun should be able to shoot a 30 shot group that has every shot cutting deeply into the inner ten, but the group will be larger than the inner ten.

If you have better groups with a 30 shot pellet count, I would LOVE to see them.

I have far more productive things to do with my shooting time. To each their own though, people get enjoyment out of different things.

And my was reply to the fact the "every pellet should touch the inner ring" that would make a group that is :

5 mm (inner 10 dia)
2x4.5 (pellet dia)
.1-.2mm line width

14.1 mm to 14.2 mm. That sir is a shitty group no matter how many shots you shoot at it.

I have an LP2 and did exactly what the other poster said; place the LP2 in a vise (technically, I sandwiched it between two 1x2 strips.).

I found that the factory velocity (circa 575 fps w/RWS 7.0, Hobby) didn't produce the best groups. Sorry, I don't have the paper that I shot the groups into.

Long story short I found that 492 fps w/RWS R-10 7.0/4.50 produced the best groups (~ .187?). Also tested were:
JSB Yellow (486fps/4.50/~ .196?),
H&N Finale Match (4.48,8.2,487fps,~ .197),
JSB Green (491fps,4.49,~ .197),
Hobby (492,~.200?)

There are many variable involved and my testing wasn't scientific. It was me testing for my LP2.

Some may argue that a faster VO will have less dwell time (in the barrel). But now, I have the confidence where I need it (in my head) on what I can shoot to.

Your results maybe different, but, your confidence and always use the boost.

Chuck

All those velocities sound kind of "hot" to me. Back off the screw until you're getting around 525 (or somewhere near that) with the lightweight pellets and 470+ with the heavies. See what the groups look like.

In my personal testing I found the higher velocities didn't hurt a thing; just used more air, increased jump, and cut cleaner holes in crappy targets. The RWS Basics made "match grade" groups at the lower setting, though.

Low or high; it won't matter much. Just play with it and have fun.

Also of note, the compensator (on the barrel) along with the cone can also make a difference in the groups. I space mine 1.5mm (using a allen head wrench) to space it. Try loosening up the compensator and adjust it too.

It'll be a combo of VO and the cone in the compensator.