Target/ELR 375 HE..

In the KO2M match, wildcat cases built on our

585 HE were in top ten finishers.

Others didn't get any in. ED
 
The model 416 HE long case in middle, hydro formed one,

has case capacity of 240 gr, and the 416 HSM

on the right, twice fired case, capacity is 320gr.. ED
 

Attachments

  • 2aphsm416heexp.jpg
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Shooters now are talking more; short, fat cases sticking, pockets not lasting as expected.
Trying to get best speeds the things raising pressures are bad case proportions, too fast of
powders, and the debth of the bullet into the powder space, as shown in the picture below..
My 375, 416, etc testing loaded like bottom one, in longer freebore....Ed.

416inout.jpg
 
Here is case measurements for our 416 HE target case
made from our 585 HE big belted case. Ed

416heprint.jpg
 
Here is picture of 375 HE left, 416 HE next, 416 HSM right..

pat1.jpg



Here, tentative specs, 416 HSM case we are doing from bmg brass,

416hsmpic.jpg




A 375 HE, with Lawton action, bunch being done with those .....
When butt of this stock weighted, gun will be over 30 lbs.

lawton375.jpg
 
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Anyone with Barnard P-Cheytac action, I need some info,

I understand it has dia of 1.53" and 3 lug bolt, and I need

a picture of the bolt face...Ed
 
Here is a 375 HE target gun set up, by Asteroid Precision...

375hehotrod.jpg



Here is video of it being tested... And with a 350gr bullet about 3450-3475,

bolt opened easily with one finger...And he's just getting started

and is checking on better powder, Ed..



 
Here is375 HE being done in MRC PH,
these have large diameter bolt, testing
and rounding up brake, extra long scope rail and later
may get into ELR with McM stock.Weighs over 30 lbs.
Butt of this stock weighted..Ed

ph375.jpg
 
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585 Hubel Express video, 190ft/lbs recoil, heavy load, gun little light....





Here is our 416 HSM we are developing next to 416 Barrett, Ed

hsmbarrett.jpg
 
Here in picture of the cases, are shown the steps in making

our 416 HSM case, from BMG brass,, Ed

416process.jpg
 
We might have a company that is doing a bolt gun with an

action between BMG size and longer rifle actions used for

375 HE, 375 Lethal, and Cheytacs.. To use for our 416 HSM

without having to do extreme rebating of the rim...Ed
 
Here is picture of 620 416 hsm cases half done. Done on cnc ,

that slimmed them down, cut new rim and extractor groove.

There are over 500 more at cnc getting done now, plus we have

1000s more bmg cases we make them from, when needed..

This case is public domain and if anyone wants to make

them we can give the steps involved...Ed.

hsmcnc.jpg
 
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