Gunpowder VihtaVuori N150.

[kristian55]

Hi.
What load of gunpowder VihtaVuori N150 it is needed to utillize for achievement speed 2400fps-2900fps?
Bullet 180gr.-200gr.-220gr.-240gr..
Barrel/cal. 30-06 , 22" (steel 4140)
Your recommendations.
Thank you for an answer,
Kristian.
P.S.
Gunpowder VihtaVuori N150 N150 - 8lb - N150-8 by: Vihtavuori - Vihtavuori-Lapua.com near on properties to to IMR 4350?
I plan to utillize bullet 65G , 65C and 65B
http://www.woodleighbullets.co...llet List 3.html
and
bullet 308177HV198
GS CUSTOM BULLETS - Specifications for use

 

[justgoto]

My Hornady manual lists VIHT n-150 for the lighter bullets, 150gr and below. It suggests using, VIHT N-160 for the heavier bullets.

It has the two powders listed for the lighter bullets (IMR 4350 and VIHT N-150,) with a 5 grain difference in charges.

 

[kristian55]

My Hornady manual lists VIHT n-150 for the lighter bullets, 150gr and below. It suggests using, VIHT N-160 for the heavier bullets.

It has the two powders listed for the lighter bullets (IMR 4350 and VIHT N-150,) with a 5 grain difference in charges.

Hi.
I am in a position to apply only the gunpowder of SUNAR it is an analogue VIHT N-150 ,-initial weight of gunpowder for heavy bullets from 45gr.+.
http://gsgroup.co.za/burnrates.html

 

[kristian55]

My Hornady manual lists VIHT n-150 for the lighter bullets, 150gr and below. It suggests using, VIHT N-160 for the heavier bullets.

It has the two powders listed for the lighter bullets (IMR 4350 and VIHT N-150,) with a 5 grain difference in charges.

My calculations:
I knowing that limits SAAMI specifications for the rifles of caliber 30-06 make ANSI PSI 60.000 - ANSI CUP 50.000
for 300Win.ANSI PSI 64.000 - ANSI CUP 54.000.
I put a question about high and critical speeds which can be utillized for a barrel/cal. 30-06 , 22" (steel 4140).
PSI 60.000 - 4218.42 at. coming from that critical pressure is in a barrel- I put a question about high and critical speeds,-coming from that critical pressure is in a barrel/cal. 30-06 , 22" (steel 4140)-4218.42 at..
E(max. and critical)=mv2/2
For example:
for a bullet which I want to utillize CGC Bullet .308" 177gr HV on barrel/cal. 30-06 , 22" (steel 4140) stalling speed will be 2805.12ft/s
at critically maximal pressure PSI 59786.4.