Go Back   The Hunter's Life > GUNS & AMMO > RELOADING
Thread Tools Display Modes
Prev Previous Post   Next Post Next

Hardness and pressure and velocity
Old 08-21-2006, 07:25 PM
drinksgin (deceased) drinksgin (deceased) is offline
Senior Family Member
Join Date: Oct 2004
Location: Trinity,TX
Age: 80
Posts: 5,559
drinksgin (deceased) is on a distinguished road
Default Hardness and pressure and velocity

On another forum,some posters wanted plinking loads for .45-70.
I have 2 bullets I use for that, I had some 205gr SWC plain base, .459".
I had a few of air cooled wws, BHN 12, and some water dropped wws, BHN 28.
I loaded 10 of each with 23gr of a milsurp ball powder, WC 820,same speed as AA #9, a medium and magnum pistol powder.
I have been learning about ball powders, seems they are like 2 cycle engines, need some back pressure to perform best.
I shot the loads, the A/C BHN 12 bullets gave a high of 1548 and a low of 1215fps, average of 10 shots, =1355fps.
Same bullet and powder charge, just water dropped and BHN 28, high of 1624 and a low of 1529, average of 10 shots, = 1575fps.
The harder bullet was faster and had much less variation.
Mean much, not really, but interesting for casters.

Last edited by drinksgin (deceased); 08-21-2006 at 08:52 PM..
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
8mm Turk pressure values tomme boy RELOADING 5 10-18-2006 09:11 PM
Chamber Pressure sakorick RELOADING 6 06-10-2006 07:44 PM
Cast lead bullets, How do you measure hardness? 243riflehunter RELOADING 6 10-25-2005 08:12 PM
Pressure questions CAfrica RELOADING 16 10-09-2005 01:53 PM
Penetration: Does less velocity = more? M1Garand RELOADING 6 06-15-2005 08:10 AM

All times are GMT -5. The time now is 03:26 AM.

vBulletin skin developed by: eXtremepixels
Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.