Optimal bullet design for Hunting

24 December 2007, 14:19

Gerard

With numlock on, hold down the alt key and type 130. Ã©

128 Ã‡ 148 Ã¶
129 Ã¼ 149 Ã²
130 Ã© 150 Ã»
131 Ã¢ 151 Ã¹
132 Ã¤ 152 Ã¿
133 Ã 153 Ã–
134 Ã¥ 154 Ãœ
135 Ã§ 155 Ã¸
136 Ãª 156 Â£
137 Ã« 157 Ã˜
138 Ã¨ 160 Ã¡
139 Ã¯ 161 Ã
140 Ã® 162 Ã³
141 Ã¬ 163 Ãº
142 Ã„ 164 Ã±
143 Ã… 165 Ã‘
144 Ã‰

24 December 2007, 15:28

JefferyDenmark

RIP

It is all cool

Gerard i did not know all therse codes, wow

Cheers,

AndrÃ©

24 December 2007, 20:24

Macifej

quote:
Originally posted by RIP:
Hey Macifej! Look! It has a subtle SHark fin on the nose!

Yes! It's very SHarkee except for that bore riding nose with radius and cup!!

Carry on Boyz! Never know til ya shoot it!

24 December 2007, 22:33

RIP

Gerard:
Merry Christmas. Happy New Year.
Here's hoping for some progress on the .395 bullet supply, through resolution of whatever conditions are preventing it, beyond your control and beyond my control.

If I have to remember code to move the ' back one space then:

Andre',
Bore riding nose on a DGR bullet: Macifej does have a point. Fouled rifling or stray dirt might slow down the loading of a cartridge into battery, might be enough bobble to discombobulate.

It looks like you actually have to force the bullet nose into bearing on the .500" diameter lands just to close the bolt on a minimum CIP throat?

The 500 A-Square throat is plenty roomy for your bullet nose. I guess your rifle has more than the minimum CIP 500 Jeffery throat?

25 December 2007, 22:52

Robgunbuilder

I've stuffed hundreds of .50 BMG boreriders through very fouled bores and never ever had a problem. In fact I'd see it as a benefit. BTW, I'd imagine that pure copper fouling will be much easier to remove with ammonium sulfate solutions than brass fouling. I will sell my own bore cleaner ( Rob's Bore Shine) with my ultimate DGR bullet!-Rob

26 December 2007, 06:41

RIP

Rob,
I'm sure the bore-rider nose works great in the 50BMG throat.
I am sure Andre's bullet will work great in a 500 A-Square throat.

Here is how I am loading it, a little longer than a CIP minimum 500 Jeffery throat might require, I guess, as i do not have a 500 Jeffery. BTW it feeds great in my rifle at COL of about 3.730", "death-crimped" on the second "groove":

I have a feeling Andre's bullet will be a winner in every way, just bouncing some ideas around.

BTW, Andre's bullet's driving bands are .509" diameter, and the nose is .500" diameter, and there is a SHark fin transition from nose to first driving band, which is ahead of the first groove. The bullet nose comes up to full .509" for a bit before the first groove. Right Andre'?

26 December 2007, 06:55

Robgunbuilder

The driving band issue isvery easy to fix with CNC programing. Andre's bullet design comes very close to the ultimate IMHO. It needs some minor tweeking thought and maybe a expander wedge.Death Crimps are good!-Rob

29 December 2007, 17:41

JefferyDenmark

RIP

That sure looks great.
Sorry for not responding earlier, I am in NY now.
If you can seat the bullet deeper you should be within CIP specs. Is the case full? Compressed load?

ROB
The bullet needs more development. I would like shark gill grooves like on my first design, that will make death crimp easier.
I am looking very much forward to the test results

Cheers,

Andre'

29 December 2007, 18:33

Dave Bush

Rob:

In a soft point bullet, I always thought that Woodleighs had the right shape. In a solid, I think the shape of the old Trophy Bonded Sledgehammers were absolute perfection!

Dave

Dave
DRSS
Chapuis 9.3X74
Chapuis "Jungle" .375 FL
Krieghoff 500/.416 NE
Krieghoff 500 NE

"Git as close as y can laddie an then git ten yards closer"

"If the biggest, baddest animals on the planet are on the menu, and you'd rather pay a taxidermist than a mortician, consider the 500 NE as the last word in life insurance." Hornady Handbook of Cartridge Reloading (8th Edition).

04 January 2008, 07:33

RIP

quote:
Originally posted by JefferyDenmark:
RIP

That sure looks great.
Sorry for not responding earlier, I am in NY now.

Andre',
My sympathies to you for having to go to NY.

If you can seat the bullet deeper you should be within CIP specs. Is the case full? Compressed load?

No worries about the loading I showed. It fits the 500A2 throat just fine, is shorter than my magazine box, feeds great in my rifle, and it is not compressed: the powder is shaking and rattling just a wee bit with 110 grains of RL-15. I could easily load 115 grains and be about 100% at this COL. I expect about 2450 fps with this load (110 grains) and could easily get 2550 fps by adding more coal to the boiler.

ROB
The bullet needs more development. I would like shark gill grooves like on my first design, that will make death crimp easier.
I am looking very much forward to the test results

Cheers,

Andre'

SHARK Gill Grooves: Death Crimp

We've had temps down to 7 degrees F this AM but supposed to get up to 40 F tomorrow. Maybe the waterbags of the the IWB will be in the proper phase (liquid) for the weekend.

04 January 2008, 20:58

gumboot458

........It was 40 d. F here yesterday ......Probably get there again today ,,,,,,,,,Life,s a beach ,no wait a minute , thats just where I live ,,.

04 January 2008, 21:49

JefferyDenmark

RIP

Sounds great

I an back in Denmark now, NY was to cold! 6 F when I left

I hope the IWB will see some action soon.
I look forward to the results.

Cheers,

AndrÃ©

14 January 2008, 07:11

RIP

Andre',
If it is not the weather in Kentucky, then it is an octagenarian wedding in Florida getting in the way of "gitterdun." Another weekend wasted.

The IWB has been completely rebuilt and shall be ready next weekend, as long as I don't have to go to any funeral of the newly wed octagenarians in Florida.

10" compartments, times ten, and then a little extra wood at the end (armor plate not needed): 102" from tail to nose of the IWB

The New IWB Formula:
7.0000" water
1.3125" wood
0.1250" plastic
1.5625" air

Consistent combination of 4 different tissue types, and three different phases of matter: still looking to add a plasma layer.

Pictures to follow, including bullet recovered if it stays straight for less than 102".

14 January 2008, 17:12

JefferyDenmark

RIP

Sounds great, I know how it goes.
I have like you not been able to test the latest design.
Hunting season ends tomorrow and I look forward to testing next time my friend and I get some time to play with the BIG guns.
I have not even shot my new African Mauser in 10,75x68

that sucks.
I do not have a IWB set-up like you, but plan to shoot into soaked newspapers. I might ad some cow bones in the middle to see how that effects the bullet.

Cheers,

AndrÃ©

15 January 2008, 10:26

RIP

Andre',
My new setup uses 9 quart plastic waste baskets, open at the top, filled to the top with water.

The entry port is a hole cut in the plywood, one board, pressed against the front of the first basket. Three boards back the first basket, and the basket is squeezed to parallel vertical front and back.

Each subsequent compartment is one basket and three boards (7/16" plywood x3), with a little air space around each basket. 10" depth each compartment, and a few extra boards at the end of the train, that will never see a bullet get that far.

I am very happy with this much easier to manage setup. No more water bags bulging out the side.
Only 9 quarts of water per compartment. A lot lighter on the 4 steel sawhorses it sits on: It still takes 4 horses to herd the "Iron Water Buffalo."

These tough little plastic trash cans could hold ordnance gelatin, wet sand, dry sand, bones, blood, guts, meat, hide, sawdust and waste oil, wet newsprint/paper, bricks, gravel, silly putty, whatever ... but there would be no consistency from shot to shot ... just like with a game animal in the field.

Exciting times at RIP Arms, LL(C) R&D. AKA Rip-All R&D. My mission statement and motto: "Rip 'em a new one!"

15 January 2008, 10:45

Macifej

quote:
Exciting times at RIP Arms, LL(C) R&D. AKA Rip-All R&D. My mission statement and motto: "Rip 'em a new one!"

UL Listed "Undertaker Laboratories" a wholistically owned subsidiary of RIP-LABS LLC!

Motto "You build it & we'll blow the shit out of it!!"

"We specialize if ballistic Buffauxlo Shit"

15 January 2008, 10:54

RIP

quote:
Originally posted by Macifej:
quote:
Exciting times at RIP Arms, LL(C) R&D. AKA Rip-All R&D. My mission statement and motto: "Rip 'em a new one!"

UL Listed "Undertaker Laboratories" a wholistically owned subsidiary of RIP-LABS LLC!

Motto "You build it & we'll blow the shit out of it!!"

"We specialize if ballistic Buffauxlo Shit"

RIP-UL, Inc.

"Ripul" "Ripple"

I like it! You're hired! You can run the whole show! Salary: Doing good is its own reward.

15 January 2008, 10:56

Macifej

Then I'm being overly rewarded........

Sending you a comical document stand-by & I'm out!!

15 January 2008, 17:35

JefferyDenmark

quote:
Originally posted by RIP:
Andre',
My new setup uses 9 quart plastic waste baskets, open at the top, filled to the top with water.

The entry port is a hole cut in the plywood, one board, pressed against the front of the first basket. Three boards back the first basket, and the basket is squeezed to parallel vertical front and back.

Each subsequent compartment is one basket and three boards (7/16" plywood x3), with a little air space around each basket. 10" depth each compartment, and a few extra boards at the end of the train, that will never see a bullet get that far.

I am very happy with this much easier to manage setup. No more water bags bulging out the side.
Only 9 quarts of water per compartment. A lot lighter on the 4 steel sawhorses it sits on: It still takes 4 horses to herd the "Iron Water Buffalo."

These tough little plastic trash cans could hold ordnance gelatin, wet sand, dry sand, bones, blood, guts, meat, hide, sawdust and waste oil, wet newsprint/paper, bricks, gravel, silly putty, whatever ... but there would be no consistency from shot to shot ... just like with a game animal in the field.

Exciting times at RIP Arms, LL(C) R&D. AKA Rip-All R&D. My mission statement and motto: "Rip 'em a new one!"

Rip

That sure sounds like a versatile set-up you have build.
If I had a large playground and not just a backyard I to would have a Shooting-range-thing like that.

I will however play at mu frineds farm in a week or two.

Cheers,

AndrÃ©

15 January 2008, 23:14

RIP

Andre',
I am no better off than you regarding shooting facilities.
The IWB breaks down into a 3-foot-long, heavy-duty impact section and a 6-foot-long trailing section and gets corraled in the garage along with the 4 sawhorses, buckets and boards.
I have to truck it to a farm and set it up for the shoot. Pain in the butt, ja.