75mm Rifling Plug

[Jack Hrovatin]

Did anyone do a plug or insert to simulate Rifling for the 75mm Canon? If so, I’d love to obtain one, or find technical info to see if I could have one (Some) made?

Respectfully,
Jack

[Donald Suttie]

I am too looking for these Rifling plugs to suit a Tiger 1 and Pak 43,i thought i would add myself here in the hope someone does them

Thanks
Donald

[Jerry Carducci]

Doesn't FoA offer 75mm simulated rifling sheets? Not sure if they are still active or not. I've had a small order in with them for a while and haven't heard a peep...

I had considered making a 'rifling button' to cut shallow grooves but I've gone lazy and have not done it.

Jerry

[Jack Hrovatin]

Jerry,
I don’t like doing business with them….too many issues, none good!

[Jack Hrovatin]

If I could find dimensions of that Rifling, I’d see about making some. By dimensions, things such as depth, or height of the lands and grooves, also number or pitch. Circumference of opening and such….right hand twist (I’m assuming) etc.

[Adrian Harris]

Which 75mm canon are you after ?

Adrian.

[Vince Cutajar]

Donald

Sent you email.

Vince

[Jerry Carducci]

If I could find dimensions of that Rifling, I’d see about making some. By dimensions, things such as depth, or height of the lands and grooves, also number or pitch. Circumference of opening and such….right hand twist (I’m assuming) etc.

This might be a stretch but somehow as long as the number of grooves is 'close' I doubt many observers would check the dept/height of the lands and grooves or that the rate of twist was correct for a particular gun tube... either that or rivet counting has been elevated to more of a science than I realized!

Jerry

[Didier Molard]

hello.
looking at some sources seems there were 32 grooves for the KWK 42 (panther 1944.de)
As for pitch, had not found anything yet, just hoping ist's not the same as some other german guns with variable pitch along the barrel.
as for depth / diameter, if you can find a precise drawing of a shell with the soft steel rotating bands, you will have everything ,as main body of the shell can be considered as minimum diameter, and outer diameter of the rotating band as the max diameter at groove feet.
found 2 versions, with more or less complex rotating band shape.
again, may be not precise to the mm in real, but good enough at 1/6 !

Basically, the shells for kwk 42 were the same than for other german 7.5cm tank gun, except having 2 rotating bands rather than one.

And as for the recoil length it is said to be in between 400 to 430mm. (panther 1944.de again)

[Jerry Carducci]

Jerry,
I don’t like doing business with them….too many issues, none good!

Now I can see why you don't want to do business with them. I have a small outstanding order with them, for a few weeks and no acknowledgement or any discernible movement on their end at all. Waste of time and resources. I should have heeded the warnings...

Jerry

[DaveMacri]

Jack-sent you a PM about the rifling

[Riny Koks]

Rifling....

75 mm M3 Lee with rifling (needs to be finished)
Thanks to Marco Peter for all the hard work

Riny