585HE and Powder Questions

[hubel458]

Here is picture of our 416 HSM case sectioned next to original

BMG case on the right sectioned, to show that we still have

enough thickness in the sides to handle high pressure,

in a case with 310 gr capacity..We are getting the wildcatting

work set up so we can do couple hundred a month.

We still have thousands of 585s, 375HEs, 416 HEs, 408 HEs,,Ed

 

[hubel458]

Here is comparison of our 416 target cases, 1st is 416 HE, which we have a whole bunch of.
Second is a model of what I'd have Bruce make on his medium machine, if I could, the
416 HE Long. Third is our 416 HSM which we are working on making by wildcatting
bmg cases, If I could for target use I'd also make 375 HE longer.. Ed..

 

[hubel458]

Bryan Litz just recently shot 3 shot group at 2 miles using Paul
Phillips heavy barreled, target rifle built by Lethal Precision in
375 Lethal Mag(585HE necked down, very similiar to 375HE )...
It grouped 17.5 inches tall by 22 inches wide.

I understand that there was 2-3 times as many guys wanting
to try the 2 mile shoot at Whittington than there was openings for.
So check out Tonopah, NV 2-Mile Match Aug 24 - 26, 2017
Dates are August 24 to 26 (site zeros on the 23rd)

 

[hubel458]

Applied Ballistics shooter Mitch Fitzpatrick just hit 3 of 5 at 3520 yards,

this weekend at Valdina Ranch , west of San Antonio.

Used his 375 LM, case similar to out 375 HE..

A great accomplishment at the 2017 World's Longest Shot Challenge. Ed

 

[hubel458]

About 2 mile military sniper shot kill of Isis soldier
in Iraq that is the latest news...

By Paul Philips, from FB...

In response to the latest amazing 2.1 mile Canadian Armed forces
sniper shot in question, A lot of my friends have been asking
if this is possible or not.

If there are any doubters out there?!

There will be many events in the USA where you can come watch 1-2 mile
shots. Visit ELR Central, FB, for more Information. The science of
accuracy and improvement of rifle components have made this possible.

Below is a photo of a 17x22 inch consecutive 3 shot group @ 2.05 miles
made with my 375 Lethal Mag. Bryan Litz on the trigger and
Emil Praslick on the wind.

In the other photo, these 3 impacts were made by fellow team mates
Mitchell Fitzpatrick, Derek Rodgers and Bryan Litz. Emil Praslick
and Paul Phillips on the wind. All three impacts were made with only
3 rounds each. So within 3 rounds for three shooters in a row we were
able to make impacts on a 36 inch plate (1 moa) at 2 miles or 3613 yards.

The purpose behind our research is to help improve technology
and increase our hit % at extreme ranges. This will help save
lives and bring our troops home safely.

Semper - Fi !!

Picture of Paul's Gun. Mitch also holding it with him.
Mitch was last years 2 mile shoot winnerm and Mitch's shop
built Paul's big gun..Ed

 

[hubel458]

The model 416 HE long case in middle, hydro formed one,

has case capacity of 240 gr, and the 416 HSM in picture,

on the right, we fired a case twice, capacity is 320gr.. Ed..

 

[hubel458]

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.

 

[hubel458]

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

 

[hubel458]

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

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

A 375 HE, with Lawton action, bunch being done with those .....

 

[hubel458]

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

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

and need the bolt diameter

And I need a picture of the bolt face...Ed

 

[Kiwi Greg]

I have a few, funnily enough

How big do you want to make the bolt face ?

I made a 375 VM imp & it didn't work....

http://www.barnard.co.nz/model-p-chey-action.htm

There is a good start.

More info,

http://www.barnard.co.nz/images/Tech drawings/model P Chey Reciever info.pdf

 

[hubel458]

Well thinking maybe work for 416 HSM.

Tentative rim is .730".. maybe a .740" bolt face,

We here can make those cases work. as we have 20 powders

slower than HBMG, surplus powders, that others don't have.

I've seen all the drawings they have, but none of the bolt.

What is the minor diameter of bolt behind bolt lugs..Ed

 

[Kiwi Greg]

Well thinking maybe work for 416 HSM.

Tentative rim is .730".. maybe a .740" bolt face,

We here can make those cases work. as we have 20 powders

slower than HBMG, surplus powders, that others don't have.

I've seen all the drawings they have, but none of the bolt.

What is the minor diameter of bolt behind bolt lugs..Ed

I will see if I can remember & get a chance to measure one before I head to the range in the morning.

 

[hubel458]

A 585 HE ...shot with moderate heavy load......

https://scontent.cdninstagram.com/t50.2886-16/20404363_470558053312276_3772630570509533184_n.mp4


Here is a 375 HE target gun set up, by Asteroid Precision...

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..

https://www.facebook.com/video.php?v=298031133934093

 

[hubel458]

Another view of 375HE AP target gun. Ed

 

[hubel458]

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

Another view of Asteroid Precision's.... 375 HE target gun,

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

 

[hubel458]

Here in picture of the cases, are the steps in making

our 416 HSM case, from BMG brass.. Ed

 

[hubel458]

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