Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Reloading

Reloading Techniques For Reloading


Reply

chicken or egg - seating depth or powder

 
LinkBack Thread Tools Display Modes
  #1  
Old 05-24-2010, 12:55 PM
Bronze Member
 
Join Date: Feb 2010
Location: Portland, Oregon
Posts: 30
chicken or egg - seating depth or powder

So what comes first? If trying to develope a load and your limited to mag length do you first start with different grains of powder, find the most accurate regardless of group and start adjusting the seating depth or do you switch powders to try and find a more accurate powder.

If you know the seating depth of an accurate load i.e. factory load should you duplicate that depth, find an equally accurate powder combo then slowly extend seating depth.

It just seems with all the different factors you could shoot your barrel out before finding an accurate load.
Reply With Quote
  #2  
Old 05-24-2010, 01:16 PM
Silver Member
 
Join Date: Mar 2007
Location: Dallas,OR
Posts: 346
Re: chicken or egg - seating depth or powder

What caliber and what bullet are you wanting to start with? Maybe I can help save you some time.
Reply With Quote
  #3  
Old 05-24-2010, 01:47 PM
PUBLISHER
 
Join Date: May 2001
Posts: 5,863
Re: chicken or egg - seating depth or powder

Powder first, OAL second.
__________________


Long Range Hunting Rifles

Long Range Rifles, LLC - Ready To Ship

Components and assembly by LRH Sponsors
Reply With Quote
  #4  
Old 05-24-2010, 02:12 PM
Bronze Member
 
Join Date: Feb 2010
Location: Portland, Oregon
Posts: 30
Re: chicken or egg - seating depth or powder

270wsm in a tikka T3 150 Berger

My OAL measures 2.405 to the lands. To fit in the magazine I have to seat to max of 2.340 giving a coal of 2.895 where mag max is 2.900. This creates a jump of .065.

Most accurate load I have found so far is the factory federal premiums with an OAL of 2.238 and jump of .167 but produced 1 ragged hole at 100yds.

I have tested h1000 & rl22 at the OAL of 2.340 with poor results.

I was thinking about loading 3 rounds each of Retumbo 69-70.5 in .5 increments at the OAL of 2.240 (matching factory federal) 2.290 (half the distance) 2.340 (max mag COAL)

But I am not sure if this is a good approach.
Reply With Quote
  #5  
Old 05-24-2010, 02:31 PM
Junior Member
 
Join Date: Jan 2010
Posts: 28
Re: chicken or egg - seating depth or powder

How can you find the most accurate powder without regarding the group size?

Different weight bullets work better with different powders.

The bullet design (ogive type) also plays a factor when you consider the amount of leade in the barrel's throat and wanting to keep the COAL mag length. If the barrel likes a particular bullet with a Secant ogive and only a slight jump to the lands, there is a very good chance the COAL will no long be mag length.
Reply With Quote
  #6  
Old 05-24-2010, 02:45 PM
Bronze Member
 
Join Date: Feb 2010
Location: Portland, Oregon
Posts: 30
Re: chicken or egg - seating depth or powder

Quote:
Originally Posted by 223Rem View Post
How can you find the most accurate powder without regarding the group size?

Different weight bullets work better with different powders.

The bullet design (ogive type) also plays a factor when you consider the amount of leade in the barrel's throat and wanting to keep the COAL mag length. If the barrel likes a particular bullet with a Secant ogive and only a slight jump to the lands, there is a very good chance the COAL will no long be mag length.
You can't find the most accurate load without regarding group size. I don't understand what your asking.

IS it not true that a gun may appear to NOT like a bullet powder combo at 1 OAL but like that same combo at a different OAL?
Reply With Quote
  #7  
Old 05-24-2010, 02:46 PM
Platinum Member
 
Join Date: Oct 2007
Location: Mountians of SW NC, near Asheville
Posts: 1,596
Re: chicken or egg - seating depth or powder

IF the load is no good, changing the seating won't make it so.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: chicken or egg - seating depth or powder
Thread Thread Starter Forum Replies Last Post
Seating depth-powder vs bullet mtelkhntr78 Reloading 4 08-06-2011 01:30 PM
Powder Throw Just as Significant - Seating Depth 338winmag Reloading 1 08-01-2011 02:04 PM
Seating Depth Affected By Powder Charge? Propdoc03 Reloading 4 07-09-2011 07:02 AM
New Loads: Powder Charge vs Seating Depth bookworm Reloading 4 09-05-2009 03:36 PM
Chamber Leade, Seating Depth, Powder Capacity, Pressure Chester Evans Reloading 5 07-02-2005 07:11 PM

Current Poll
Do you archery hunt for elk?
YES - 34.32%
116 Votes
NO - 48.52%
164 Votes
Not yet, but I plan to. - 17.16%
58 Votes
Total Votes: 338
You may not vote on this poll.

All times are GMT -5. The time now is 01:13 AM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC