Woodleigh Bullets - re-opening ?

[Excessexpress]

you're assuming the brinnel hardness of a hydro is less than the gilding metal of a FMJ. I don't have the data, but I would be surprised to find that a hydro that appears brass is softer than copper gilding metal. (the FMJ never touches the rifle)

Hydrostatically Stabilised Bullets - Woodleigh Bullets

Woodleigh Bullets - Premium Bullets for All Game

www.woodleighbullets.com.au

Feel free to have a read.

 

[Rule 303]

That's the antithesis of all things I've every heard or read, @Ray B

Monometals are at least 22% larger via volume. Thus, they tend to "straighten the barrels" and can blow the ribs on vintage guns that weren't designed for them. Put another way, they don't move around corners very well, and double rifle tubes are curves.

Second, monos can be very hard. The whole point of an original woodleigh FMJ is that it is soft lead, plus a steel jacket, plus soft gilding metal exterior so it engraves gently in the rifling. A much harder alloy than gilding metal would be worse, and at least a lead core will yield whereas most monos will not, when squeezed by a tight spot in the barrels.

In vintage British doubles, the gold standard has always been woodleigh FMJ as they are replicas of the Kynoch bullets the gun was made to shoot 100-120 years ago.

The Hydros are bore riders. That is the shank is the diameter of the bore or Lands not the groves like Barnes. This should mean less pressure and damage is done to older rifles than say using Barns or most Solids. As for bring larger in volume that would be in length not diameter and still the same weight so where is the problem with bore riders as the grove contact area is smaller then most other types.

I believe some of the South African made mono's are bore riders. Also Woodleigh's softs have their base slightly larger than the rest of the contact area on the bullet, so I am told.

 

[WAB]

The Hydros are bore riders. That is the shank is the diameter of the bore or Lands not the groves like Barnes. This should mean less pressure and damage is done to older rifles than say using Barns or most Solids. As for bring larger in volume that would be in length not diameter and still the same weight so where is the problem with bore riders as the grove contact area is smaller then most other types.

I believe some of the South African made mono's are bore riders. Also Woodleigh's softs have their base slightly larger than the rest of the contact area on the bullet, so I am told.

That’s super interesting. How do they achieve a gas seal?

 

[Rule 303]

That’s super interesting. How do they achieve a gas seal?

What I will call the bands. Picture a Barnes the shank is the grove diameter and then the groves on the projectile are cut into it. So a 308 projectile has a shank diameter of 308 and the groves on the projectile are 300. The Hydro are machined so the shank is 300 and the bands are 308. As the Barnes shank is 308 the projectile engages the lands sooner than the bands on the hydro do. So the raised section on the Barnes is 308 with groves cut into it the Hydro bands are 308 and the shank is machined down to 300, if this makes sense.

 

[geoff rath]

The Hydros were developed by an engineer who specialises in industrial metal-punching equipment design. He approached Geoff MacDonald with the idea for rifle bullets.

 

[WAB]

What I will call the bands. Picture a Barnes the shank is the grove diameter and then the groves on the projectile are cut into it. So a 308 projectile has a shank diameter of 308 and the groves on the projectile are 300. The Hydro are machined so the shank is 300 and the bands are 308. As the Barnes shank is 308 the projectile engages the lands sooner than the bands on the hydro do. So the raised section on the Barnes is 308 with groves cut into it the Hydro bands are 308 and the shank is machined down to 300, if this makes sense.

That makes sense. I’ve used the hydros with great success but obviously did not understand their design. A good friend is an instructor at Holland and Holland. He has a number of clients who swear by the hydros for the big nasties in Africa. I’m assuming that they are using them in their H&H rifles.

 

[sgt_zim]

got an email from geoff today, says there should be 404, 366, and 264 bullets available by end of year.

 

[colorado]

Awesome!

 

[Mark R]

The Hydros were developed by an engineer who specialises in industrial metal-punching equipment design. He approached Geoff MacDonald with the idea for rifle bullets.

There was 2 of them that designed the Hydro’s. They were making them before the Woodleigh hook-up

 

[deewayne2003]

The Hydros are also produced at a separate facility that was not affected by the fire; I ordered and imported some for .404 & .470 a few months ago.

Also was able to order .404 Hydros and have them shipped to a friend in Australia in prep for an upcoming hunt.