The Firing Line Forums

Go Back   The Firing Line Forums > The Skunkworks > Handloading, Reloading, and Bullet Casting

Thread Tools Search this Thread
Old February 26, 2013, 08:03 PM   #1
Junior Member
Join Date: February 12, 2013
Posts: 11
Is there a way to determine MIN COAL

I have seen a lot of load data that will give MAX COAL and i have seen some load data that will give MIN and Max. My question is can you calculate the min coal somehow for any given load?
motoman202 is offline  
Old February 26, 2013, 08:17 PM   #2
Brian Pfleuger
Moderator Emeritus
Join Date: June 25, 2008
Location: Western Colorado, finally.
Posts: 19,118
There really isn't a minimum except under specific circumstances.

Practically speaking, you would eventually seat a bullet so short that the case mouth would be past the ogive (full diameter section of the bullet) and the mouth would start catching on the feed ramp or other things, possibly even just fall into the case, for bottleneck cartridges. You also will begin to increase pressures, as the bullet begins to take up space that the powder wants.

For handguns especially, having short rounds can cause significant pressure problems but even then a knowledgeable loader could reduce the charge appropriately and seat the bullet as short as he'd like, until the case started catching on things again, I suppose.

In any case, particularly with rifles, you'll GENERALLY find that LONGER is more accurate. Most folks load rounds close to the maximum length that will fit in their magazines or just a couple/few thousandths short of the rifling.
Still happily answering to the call-sign Peetza.
The problem, as you so eloquently put it, is choice.
-The Architect
He is no fool who gives what he can not keep to gain what he can not lose.
-Jim Eliott, paraphrasing Philip Henry.
Brian Pfleuger is offline  
Old February 26, 2013, 10:44 PM   #3
Senior Member
Join Date: January 23, 2013
Location: Forgottonia, Il
Posts: 217
That's good advice. I like to find a factory cartridge that has a similar bullet weight and shape to what I am loading and go from there. Keeping in mind case volume so as not to compress powder in handgun loads like .380.

I found some old Remington Kleen Bore 9mm 124 grain the other day that measured out at a rather long 1.160. The price was handwritten on the box. $6.20.
rlc323 is offline  

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

All times are GMT -5. The time now is 06:48 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2017 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent:
Contact Us
Page generated in 0.07496 seconds with 7 queries