March 94 AGW New HW97

[Mach 1.5]

Just looking at some old AGW's March 1994 they tested the new HW97 and yes complete with square section spring. I know they fitted them to the MK2 97 but never realised they fitted them to the MK1.
Mach 1.5

[Hsing-ee]

Just looking at some old AGW's March 1994 they tested the new HW97 and yes complete with square section spring. I know they fitted them to the MK2 97 but never realised they fitted them to the MK1.
Mach 1.5

That must have been the days when Geoffrey Boxall or someone would actually strip the rifle as part of the test .. although seems a bit late.

What on earth were Weihrauch doing chancing it with the square-secton wire? Apart from the Ox, the only other one is the Merlin that Maccari sells in the US. I don't know the theory behind the square wire thing other than it has more volume of metal for a given diameter of wire, but what is the sense in that? Just makes the spring stiffer, but you could do that by using thicker wire, albeit the spring needing to be a little bit longer than with the square.

[Mach 1.5]

Well it was 30 years ago and I dare say they learnt their lesson by the time the MK3 version came out. Mach 1.5

[TonyL]

Just looking at some old AGW's March 1994 they tested the new HW97 and yes complete with square section spring. I know they fitted them to the MK2 97 but never realised they fitted them to the MK1.
Mach 1.5

Every day's a school day, Paul.

[TonyL]

That must have been the days when Geoffrey Boxall or someone would actually strip the rifle as part of the test .. although seems a bit late.

What on earth were Weihrauch doing chancing it with the square-secton wire? Apart from the Ox, the only other one is the Merlin that Maccari sells in the US. I don't know the theory behind the square wire thing other than it has more volume of metal for a given diameter of wire, but what is the sense in that? Just makes the spring stiffer, but you could do that by using thicker wire, albeit the spring needing to be a little bit longer than with the square.

I think there may have been another one (or two?) square section springs, Al? Does "Air Force" spring (BOING.....sic!!!!) to mind?

[Hsing-ee]

I think there may have been another one (or two?) square section springs, Al? Does "Air Force" spring (BOING.....sic!!!!) to mind?

I remember the advert with some delta wing sketch aircraft with RAF roundels although no such plane had ever been in service .. I’ve never heard anyone but one and assumed it was a fake front for money laundering…

I mean what is the deal with square section springs? Just stiffer per unit length? They can shave metal if poorly finished or too tight a fit but the Maccari one I have is ok, I think I got it for some experiments on up-powering a FWB300… might fit an HW30 as well.


Merlin XL- Custom Spring- Upgraded Use

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Fits many guns that require more preload than our smaller springs.

Square wire, figure it at .116" average, .509 inch ID., 37 coils and 12.2"plus unset.

Very smooth easy cocking.

Good for the old Gamo 68-200-300- Repeaters- Diana 27-427-Original

Can be used in Modern Gamos that take the E3650 spring for a soft tune.

Can be used and cut for many guns like the Diana 24-25-R7-30's etc. Even as

a soft tune on the old R9's with the .500 spring guide.

These are easy to cut and re-close.

Presetting option allows super easy installation

[TonyL]

....... I don't know the theory behind the square wire thing other than it has more volume of metal for a given diameter of wire, but what is the sense in that? Just makes the spring stiffer, but you could do that by using thicker wire, albeit the spring needing to be a little bit longer than with the square.

I mean what is the deal with square section springs? Just stiffer per unit length? They can shave metal if poorly finished or too tight a fit but the Maccari one I have is ok,

I've never been tempted to fit a square section spring, Al, believing many of those earlier claims to be hype. Yes, I believe their main USP would have been to get more volume of steel in there to give more power / stiffness.

There have been many disparaging comments in the past going along the lines of, "I wouldn't even fit an Ox to a garden gate, they're that bad" etc. etc., but Mick, T20 (and, no doubt, others) have proved that, as long as they are properly finished, no sharp edges etc., they can be good in many applications. It's just a question of matching the spring force, preload etc., to the intended application.

[rapidresponse1]

was never keen on the square springs

[evert]

... I don't know the theory behind the square wire thing other than it has more volume of metal for a given diameter of wire, but what is the sense in that? Just makes the spring stiffer, but you could do that by using thicker wire, albeit the spring needing to be a little bit longer than with the square.

If you dont have room for a thicker round wire, the square wire puts more steel in the same area.
But guns with that little room for spring usually dont benefit from stiffer wire in my opinion.

[Anothermiss]

Metal fatigue will always find a corner an easier place to start a crack. Note the dehavilland comet....

[Geezer]

I thought the 97 was introduced with the square-section spring, and that HW/HC/the magazines presented it as an improvement.

[Hsing-ee]

I thought the 97 was introduced with the square-section spring, and that HW/HC/the magazines presented it as an improvement.

Apart from the extra stiffness they’re easier to cut and shut maybe it was making Hull Cartridge’s sessions with the bolt cutter a bit less gnarly.

[Murphy]

I remember reading that edition on the school bus!

[TonyL]

Apart from the extra stiffness they’re easier to cut and shut maybe it was making Hull Cartridge’s sessions with the bolt cutter a bit less gnarly.

Lol!

[MrGreengrass]

An Ox mainspring worked well in my HW35.
I was given X2 to test in the 35 by Dave before they were on general release.
No issues and have only recently replaced it....with the other one I had as a spare.
It was still at nearly 9ftlb
Fitted Britseals and Hi Moly lube.
Power back up to 11.6.
Definitely will outlive me
Good springs in the right gun.
Still bit boink etc but shoots well and very accurate.