20mm actions

[dave338]

ive been having a look about on here and came across a warlock action by edm, the thread seems to stop, did the bloke whos project it was every get it finished?
will edm still make a 20mm action?
you guys in the US seem to have great places to shoot, i thought that there would be a lot of interest in going bigger than .50

 

[doc76251]

Re: 20mm actions

I believe the fella your refering to is "Later", the project is still on going but I guess with one of these you have to build the gun around the boolet vs picking a boolet for the gun.

Shoot him a PM he's a great guy. He may be out of town right now though.

Cheers,

Doc

 

[dave338]

Re: 20mm actions

thanks for that doc
your the chap that works for us opics , i was going to put an order in for the sn9 10-40x80 until i realized how long it was,
when are you getting your web site fixed

 

[doc76251]

Re: 20mm actions

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: dave338</div><div class="ubbcode-body">thanks for that doc
your the chap that works for us opics , i was going to put an order in for the sn9 10-40x80 until i realized how long it was,
when are you getting your web site fixed </div></div>

I heard a rumor that it is soon. More than that I cannot say but it is too cool from what little I've seen.

Let me know if I can help you out.

Cheers,

Doc

 

[Dogtown]

Re: 20mm actions

EDM made the 20mm Warlock actions a long time ago and as far as I know hasn't been making them in almost 10 years. I mentioned this to Later and he got in touch with Bill's son Keary, who had a Warlock laying around. His project is still in development, but as has been mentioned the cartridge is a major issue.

FWIW, if I could go for a larger than .50BMG rifle, I'd built one based on the 14.5mm x 109 Soviet - impressive ballistics, yet not legal on our end without a destructive device permit.

 

[dave338]

Re: 20mm actions

it would be legal here in the UK so long as its not explosive tiped ammo,
you would need to show proof of access to mod field firing range though for the police,
do you think they would make one as a custom order?

to make it legal over there all you have to do is get a barrel and chamber it in something like 460-20mm [ it does not have to work ]just so you can export then we could fit a 20 or 50 barrel here in uk?

 

[Dogtown]

Re: 20mm actions

"so long as it's not explosive tipped"? Man, that sounds like a reasonable law that makes sense. Sheesh.

I doubt EDM will be making any more of those 20mm actions, but you still might be able to get your hands on one like Later did.

 

[Louis Corkern]

Re: 20mm actions

Dave,

Call Keary Ritchie at Affordable EDM. http://affordableedm.com/ Last time I spoke with him when I started looking for my action he said he actually had a few of the actions around. Would just take him a few weeks to complete. Get ready for $$ shock lol.
As stated my project is still ongoing and as Doc mentioned..Its not like I just picking a projectile already out there and sticking on case lol, I designing complete new projectile in a 15.5mm diameter so alot of test such as alloy, friction, fouling, etc need to be completed before FINAL projo is done.

Doc,

How everything going with you? Invite still open for August as I might be home?

Dogtown,

Can you send me any/all the info you have on that 14.55 x 109 Soviet?


Thanks

 

[Dogtown]

Re: 20mm actions

Sorry, it's 14.5 x 114 actually. The ballistics are really impressive:

http://en.wikipedia.org/wiki/14.5x114mm

920gr @ 3300fps

I think Dean has written a lot about it in the past, being superior to .50BMG both ballistically and payload wise. The Aerotek 20mm rifle is also made in 14.5mm Soviet. It's essentially the same caliber used in some WWII era Soviet aircraft and even modern Dshk heavy MGs.

Of course, like .50BMG, you wouldn't want to use surplus ball but somehow get quality brass made as well as high BC bullets. Unfortunately I think it falls into the DD category and since it's easier to get 20mm ammo here in the States, folks go that route more often than 14.5mm.

 

[dave338]

Re: 20mm actions

i dont know much about ballistics for these large cals, but if any of you have a good ballistic calcultor , i was thinking about the 50 fat mac, what do you think about a short 20mm necked to .458 firing500-650 gn bullets?
For me id be happy so long as i get about 200 rounds per barrel
Starrting with a 40" tube should be able to cut 1 or 2 chambers out of it.
Whats the best source for 20mm brass in the US?

 

[Louis Corkern]

Re: 20mm actions

Dave,

The Fat Mac had a few problems that caused it to never really catch on lol.

1. Barrel Burner
2. The designer could not shoot a complete 10 round shooting string in 1K BR and keep all the rounds on target due to EXTREME FOULING.

You can search ammo guide for the drawings, ballistics, etc.

Now for 20mm cases..I get mine from big sky surplus.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Dogtown</div><div class="ubbcode-body">Sorry, it's 14.5 x 114 actually. The ballistics are really impressive:

http://en.wikipedia.org/wiki/14.5x114mm

920gr @ 3300fps
</div></div>

Dog, Thanks...I thought for minute you were talking something new lol that I hadn't read up on..DAMN

 

[dave338]

Re: 20mm actions

later

do you think it would be possible to get the 20mm to work with 458 ish projectiles,
it would be great to use the edm action for a series of 20mm designs , one would have to be 50-20mm and also straight 20mm surplus

 

[Louis Corkern]

Re: 20mm actions

Dave,

My original "Diplomat" designs were to utilize a 900gr 50cal projectile from the necked down 20mm Vulcan case but during the research phase it was determined that a slightly larger exit hole was needed in the barrel due to pressure concerns or either cut the case in length to reduce powder capacity but then I did not want to deal with having to neck down that far due to after cutting the case the "built in" neck would be gone lol.

I then looked at having a solid projectile made in the 14.5mm range but then I was referred to look at the 15.5mm system that FN designed few years back. After looking at that and speaking with couple other people it was decided that I would settle on a 15.5mm projectile and just neck down the 20mm Vulcan case and keep in its full length.

Thanks

 

[dave338]

Re: 20mm actions

I am sure your design is going to be good , if i can get the action i will follow in your footsteps if thats ok.
it would be ace to get it to work with something smaller than .50 then i can have it licenced for hunting as well.
the 458 lott is brill but still needs more umph would like to get it up to 3800 ish with 500gn barnes 3xpoints