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Long Distance Shooting Discuss tools, techniques, tips and theories of long distance shooting

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  #241  
Old 05-29-2018, 5:44 AM
hubel458 hubel458 is offline
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That bevel in the one fired was just caused by cutting disc removing primer..

About 416 cal bullets............The heaviest 550 gr for Extreme ELR probably be best 8 to 1 twist , in 416 caliber bullets,

and 500 gr 9 to 1, and 470gr 10 to one, Barrels I have 10 to 1.

Now a novel idea is to lighten rear of bullet with small shallow hole drilled in base, might do better long range.which would allow 10 to one barrel stabilize the heavier bullets for ELR.

Have hole maybe 2/3 size of tail end of boat tail...Some going to have to try it to see if it is accurate. Ed.
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  #242  
Old 05-29-2018, 6:37 AM
LynnJr LynnJr is offline
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Thumbs down

Ed
.
Wouldn't lightening the boattail just move the center of gravity forward and require even more twist?
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  #243  
Old 05-29-2018, 7:19 PM
hubel458 hubel458 is offline
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No, making bullet nose heavier makes it more stable in flight, needing less spin,

like hollow base 585cal minie bullets only need 48 to 1 twist,or less

while out regular 585 bullets need about 24 to 1.............

By being nose heavy that center of gravity is moved forward

of the center of air pressure, so it acts to lead the point of

the bullet straight, cut down wobble.When center of gravity is behind

the center of pressure, the bullet pushing against that presssure

wants the back to yaw/wobble needing more spin to stabilise it.Ed

Last edited by hubel458; 05-29-2018 at 7:32 PM..
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  #244  
Old 07-09-2018, 4:35 PM
hubel458 hubel458 is offline
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About 416 cal bullets............

The heaviest 550 gr for Extreme ELR probably be best 8 to 1 twist , in 416 caliber bullet,
and 520 gr 9.5 to 1, and 470gr 10 to one, Some barrels I picked up are 10 to 1.......

Now a novel idea is to lighten rear of bullet with small shallow hole drilled in base, might do better
long range.which would allow 10 to one barrel stabilize the heavier 550 gr bullets for ELR.
Making bullet nose heavier makes it more stable in flight, needing less spin,
like our hollow base 585 cal minie bullets only need 48 to 1 twist, or less
while out regular 585 bullets need about 24 to 1 to stabilise them..............

The winner of the King Of 2 Mile shoot last week was using 416 Barrett with a 1 to 10
twist, with a 500 gr CEB Lazer bullet, ...Robert Brantley, with Manners Stocks....

Paul Philips was third with a 416...

GOOD NEWS-- There is now an importer and seller of our 585 HE brass getting set up here,
in US, hopefully will be in stock, few weeks........ http://bertrambrass.com .. .. Caleb Hallet..

Have got another intermediate size action besides the Montana PH our guys working on,
to do speed testingwith. It is big long REM style action that can take our 416 HSM, ED
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  #245  
Old 07-24-2018, 12:29 PM
hubel458 hubel458 is offline
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Experimental intermediate size action with the Montana PH, for comparison.

It is an experimental action for our 416 HSM, to do our speed testing with

and get a better action than Cheytac size actions, for bigger case ELR use,

without going all way up to more expensive, huge actions.

It is big long round style action that can take our 416 HSM, almost

1.6" diameter and .800" bolt, with locking lugs nearly as big as most

BMG actions.... ED


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  #246  
Old 07-25-2018, 5:02 AM
LynnJr LynnJr is offline
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Ed.
Is it made by David Trout or Dave Kiff? Looks like a Tac 408 or B66 Destroyer?
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  #247  
Old 08-01-2018, 10:15 PM
hubel458 hubel458 is offline
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It is being developed by Pierce,

Here is picture of the bolt from the experimental action,

with our 416 HSM case in it. Note the amount of the

base size of locking lugs, the amount of area on the bolt...ED


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  #248  
Old 08-05-2018, 9:47 PM
hubel458 hubel458 is offline
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Spearpoint ELR Roundup
Ride the wind in Kansas
August 11 & 12, 2018

ELR match will be held at Spearpoint Ranch near Lincoln, Ks.
Spearpoint $1000 Three Shot Challenge will be held Saturday Morning.

ELR match will have 7 steel targets from 1500 yds out to 2900 yds.
Competitors will fire 4 rounds at each target on each day for a total of 56 rounds.
Scoring will emphasize first round hits with declining point values per attempt.

Calibers up to and including .50 BMG welcome.
All shooting will be from a prone position.

Cost is $80 per shooter.
An additional $20 for those wishing to try the Spearpoint Challenge
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  #249  
Old 08-11-2018, 1:44 PM
hubel458 hubel458 is offline
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Here is link to guy doing special 585 HE in the EU, Good pictures., Ed,...........www.585he.cz
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  #250  
Old 09-18-2018, 6:57 PM
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We tested intermediate action with a 700HE barrel we had here.

Just temporary to test strength. 1000 gr over 3100..

Action worked fine.. Ed.
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  #251  
Old 10-20-2018, 2:48 PM
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Here is the intermediate size action for 416 HSM with test barrel, .Ed

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  #252  
Old 11-02-2018, 11:25 PM
sigstroker sigstroker is offline
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Do they have an electronic gong?

How can they see through the scope with the barrel in the way?

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  #253  
Old 11-03-2018, 10:08 PM
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This guy is a genius.

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  #254  
Old 11-18-2018, 6:06 PM
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Quote:
Originally Posted by sigstroker View Post
This guy is a genius.

mind blown

Sent from my SM-N950U using Tapatalk
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  #255  
Old 11-23-2018, 3:22 PM
hubel458 hubel458 is offline
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In 416 HSM got a 415 gr long brass bullet 3800,

with plain barrel, no brake, on intermediate action, Ed
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  #256  
Old 12-05-2018, 9:56 AM
hubel458 hubel458 is offline
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Now my 416 HE gets same 415gr bullet to 3300.Ed
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