416WSM on Siamese Mauser & 416/348Ackley Improved on Martini

[Rule 303]

Bod, it was with freshly annealed cases and the one of rounds had been in the bottom of the mag for a bit of time while pig shooting. The projectile had worked their way forward and stuck in the lands when I unloaded. So I am thinking too much powder trying to achieve your velocities with ADI powder.

 

[rdog]

That is the way I have heard of people doing it. Me, being a bit ham-fisted would get a gunsmith/toolmaker/mech engineer to do it.

Gee, rule 303 reducing the expander ball dia is easy spin it in a cordless drill & use 400 grit & finish with 800 or 1000 they are hard but it easy to reduce dia by .001 to .002 inch .

 

[BlueFlyer]

Interesting. I bet one could simply clamp the ball in drill press chuck and take it down a thousandths with fine emery cloth?

That is basically the same way I would do it, but I would put it in the lathe. To take such small amounts of material off and maintian surface finish you cannot use a cutting tool. When I made up the pilots for my Gritter's rod, I turned them within a couple of thou, then hardened them. And got them to final diameter by just running 1000grit emery cloth between my fingers (WD40 lubrication).

 

[Rule 303]

Gee, rule 303 reducing the expander ball dia is easy spin it in a cordless drill & use 400 grit & finish with 800 or 1000 they are hard but it easy to reduce dia by .001 to .002 inch .

rdog you greatly over estimate my abilities. You could give me an A Bomb to play with and when it went Bang a rod with a flag with the word Bang on it would pop out

 

[BlueFlyer]

I have been busy, but not sure how productive. I have 1 Chapman safety and 3 rifles that need a safety conversion. I was thinking of making a CAD model of the Chapman and then having a few machined up on a NC machining centre.
Then the photos popped up on here with the LH 3 position conversion on a 450Rigby. It was not exactly clear in the photos but it appeared to be a more simple design than the Chapman.
For the last week I have been spending most nights working on a CAD model (and refreshing my CAD skills). Given that Mauser 98 parts are getting more difficult to source and Siamese Mauser parts are near impossible, I am much happier to develop the design on the screen than sacreficing real parts.

Top view in the FIRE position.

Top view in the SAFE position.

Top view SAFE & LOCKED

Rear view FIRE position

Rear view SAFE position

This is what the Safety lever looks like from the plan view.

And from below.

Any thoughts, comments or input as to what could be wrong with the design or possible improvements would be appreciated. You tend to get a bit of tunnel vision when working on the screen.

 

[Ontario Hunter]

Excellent. Left hand? I like that better than lever on the right side. I have a left hand wing style 2-position scope relief safety on my Springfield 03A3. It's more convenient for right hand shooter because when on the gun ready to fire the thumb is wrapped over the wrist.

The Chapman modification seemed a bit complicated. I bought it for my Springfield but figured it was beyond my abilities/equipment. I'm still looking for a different safety for the Springfield. The Buhler style wing safety is fine with the scope attached but switching to iron sights the unprotected lever gets caught on stuff easily and disengaged. 3-position safety on the side of shroud is better location.

If you figure this out for your Siamese Mauser, I may have some business for you. Winchester Model 70 3-position bolt shroud threads onto Springfield bolt. To make it work, I need someone who can engineer and machine a new striker/firing pin. A few guys have done it but they're not sharing their pattern. Myers makes the safety and striker ... for $400! Interested?