.177 HW30S and HW99S for MPL shooting.

[PhatMan]

Hello to All,

I use the below trio of HWs in the MPL :

HW30S - Vortek PG2 kit 7.8 ft.lb with JSB Express (7.87 gr.), 3mm post front site, Gehmann 590 rear-sight, Anschutz 9775 0.5 --> 3 aperture.

HW99S - Full Shauny tune - 11.1 ft.lb with JSB Express (7.87 gr.), 3mm post front site, Gehmann 590 rear-sight, Anschutz 9775 0.5 --> 3 aperture.

HW95 Super Match - Wonky Donky Extreme short-stroke tune - 8.7 ft.lb with RWS R10 Pistol (6.99 gr.), Centra score front tunnel with 4.6 mm Centra Glass element, Gehmann 590 rear-sight, Anschutz 9775 0.5 --> 3 aperture.

The Gehmann 590s have been drilled & tapped to take a 3 mm screw to act as an arrestor. This is needed as most modern aperture sights do not have the clamping force needed on a recoiling springer.

Serously reducing a springers output, whilst maintaining a fast shot cycle is very, very difficult.

The Wonky Donky extreme short-stroke was the best that could be achieved - seriously lightened piston with bearings, piston extension to short stroke, and a long & soft spring.

The shot cycle is a quick as it was when the rifle made 11 ft.lb. - indeed, the shot cycle of the above rifles are much quicker than on 'traditional' recoiling 10m springers such as the Walther LG55 & LGV.

The experiences reducing the HW95s power, led me to leave the output of the 99S at 11 ft.lb, as the rifle is perfectly balanced at that output.

Have fun & a good weekend

Best regards

Russ

[zooma]

Hello to All,

I use the below trio of HWs in the MPL :

HW30S - Vortek PG2 kit 7.8 ft.lb with JSB Express (7.87 gr.), 3mm post front site, Gehmann 590 rear-sight, Anschutz 9775 0.5 --> 3 aperture.

HW99S - Full Shauny tune - 11.1 ft.lb with JSB Express (7.87 gr.), 3mm post front site, Gehmann 590 rear-sight, Anschutz 9775 0.5 --> 3 aperture.

HW95 Super Match - Wonky Donky Extreme short-stroke tune - 8.7 ft.lb with RWS R10 Pistol (6.99 gr.), Centra score front tunnel with 4.6 mm Centra Glass element, Gehmann 590 rear-sight, Anschutz 9775 0.5 --> 3 aperture.

The Gehmann 590s have been drilled & tapped to take a 3 mm screw to act as an arrestor. This is needed as most modern aperture sights do not have the clamping force needed on a recoiling springer.

Serously reducing a springers output, whilst maintaining a fast shot cycle is very, very difficult.

The Wonky Donky extreme short-stroke was the best that could be achieved - seriously lightened piston with bearings, piston extension to short stroke, and a long & soft spring.

The shot cycle is a quick as it was when the rifle made 11 ft.lb. - indeed, the shot cycle of the above rifles are much quicker than on 'traditional' recoiling 10m springers such as the Walther LG55 & LGV.

The experiences reducing the HW95s power, led me to leave the output of the 99S at 11 ft.lb, as the rifle is perfectly balanced at that output.

Have fun & a good weekend

Best regards

Russ

That's a seriously large lump for a grip that you have on your HW99S Russ!

......and that bright orange/yellow coloured stock make's it stand out even more - it makes my standard brown wood HW Minelli made stock look a little dull

Was this stock custom sprayed - or did HW actually get a bit enthusiastic and supply it that way?

I like the orange colour co-ordinated dioptre too - nice touch.

Is that a 'special" optional stock or is it a German spec. option that we don't have over here?

[PhatMan]

Bob,

I had many issues with the standard stock - the length of pull was made for a gorilla, the finger reach was ridiculous even with an extra-setback trigger.

In addition, the hand was in a very bent position when in place on the stock, and the finger placement on the trigger was terrible.

The 99S' stock was modified from the standard Minelli stock, using lolly sticks () and metal loaded epoxy car body filler, and much, much sanding.

The point was to get the hand in the correct, un-bent position on the rifle, with the trigger finger parallel to the barrel, and in the correct position for the finger pad to be at right angles to the trigger shoe.

Looks a bit Franken-stock, but it does work very well indeed Some cruel chappies have dubbed it the 'Elephant Man'

The easiest way to re-finish the stock after all the faffing & sanding was to paint it.

The stock was painted with three coats of grey car-primer, followed by four coats of Ford Electric Orange pearlescent paint

It is a bit 'sudden', but I think it doesn't look too bad at all

Have fun & a good Sunday

Best regards

Russ

[robthedog]

Yes the reach on the 99 is stupidly long.

Bob, I cut a coil off the spring, then compressed & re finished both ends to get it level, but it was still doing 11. So shot it for a while, then took another half a coil off, then another half, bringing it down to 9.
I then shot it for a few weeks, & found it had crept back up to 10, so another half a coil got it down to just under 9, with r10 pellets, & 7.8 with hobby. So another half a coil got it down to 7.6 with hobby's & thats enough.
Both ends are compressed & the spring ground flat to make it level, which accounts for the small drop in power. The shot cycle though now feels faster, just need a bit of shooting in to see how it goes now.

Interestingly, i have since also purchased a 22 version, which was low on power to start, & when i took out the spring, the 177 spring with 2 coils removed was the same length as the standard spring out of the 22 version.

Rob

[averageplinker]

As these are supplied in 6ftlb on the continent you could buy a domestic spec spring from Germany to save chopping your existing spring.
Rich.

[zooma]

As these are supplied in 6ftlb on the continent you could buy a domestic spec spring from Germany to save chopping your existing spring.
Rich.

Hi Rich,

Now that may not be a bad idea as it would save a lot of time and work and the original spring could also be kept - or used to experiment with!

Do you happen to know a good supplier in Germany that has these 6 ft/lb springs and can supply them at a reasonable price?

I will probably chop my spring in any case as I like 'fiddling" about, but being able to buy a new 6 ft/lb spring would be very interesting to try and see how it worked straight "out of the box".

Bob.

[robthedog]

I'd be interested, even though iv'e had"a fiddle" with mine

[zooma]

Bob,

I had many issues with the standard stock - the length of pull was made for a gorilla, the finger reach was ridiculous even with an extra-setback trigger.

In addition, the hand was in a very bent position when in place on the stock, and the finger placement on the trigger was terrible.

The 99S' stock was modified from the standard Minelli stock, using lolly sticks () and metal loaded epoxy car body filler, and much, much sanding.

The point was to get the hand in the correct, un-bent position on the rifle, with the trigger finger parallel to the barrel, and in the correct position for the finger pad to be at right angles to the trigger shoe.

Looks a bit Franken-stock, but it does work very well indeed Some cruel chappies have dubbed it the 'Elephant Man'

The easiest way to re-finish the stock after all the faffing & sanding was to paint it.

The stock was painted with three coats of grey car-primer, followed by four coats of Ford Electric Orange pearlescent paint

It is a bit 'sudden', but I think it doesn't look too bad at all

Have fun & a good Sunday

Best regards

Russ

I think the special Rally Sport colour makes it an "RS" special edition HW99S

Maybe you could ask Cosworth to tune it for you too!