30-30 AI load data - Shooters Forum
» Advanced

Go Back   Shooters Forum > Leverguns > Marlin 336 Lever Guns
Register FAQ Members List Donate Calendar Search Today's Posts Mark Forums Read



Like Tree4Likes
  • 2 Post By William Iorg
  • 1 Post By Dollar Bill
  • 1 Post By broom_jm
Reply
 
LinkBack Thread Tools Rate Thread Display Modes
  #1  
Old 04-04-2005, 08:36 PM
Beartooth Regular
 
Join Date: Dec 2004
Location: SW Washington
Posts: 2,697
30-30 AI load data


Registered Users do not see the above ad.


Got a chance today to shot the new AI conversion.

Got 3025 fps w/ 110 gr bullets,
2750 fps w/ 125 gr bullets, and
2535 fps w/ 150 gr bullets.

More than that I got serious pressure signs, including the lever kicking out and hard extractions.

Just chrono'd today, so now will work on accuracy with these as upper limits. Might later work up a 170 gr load.

thanks to all who have helped with this project, especially williamiorg.
Reply With Quote
  #2  
Old 04-05-2005, 04:20 AM
Beartooth Regular
 
Join Date: Nov 2001
Posts: 6,251
[QUOTE=leverite]
More than that I got serious pressure signs, including the lever kicking out and hard extractions.
QUOTE]

Leverite, Glad to have been of some help.
If you are getting lever kick you need to back off a little. Of course you know that! I have posted that I have experienced some lever kick with published loads in the .307 (Winchester M-94BB) and the .444 (Winchester Timber Rifle) on warm days. The kick is unmistakeable.

I have never experienced this with the .30-30AI. What was your load?

There is a lot of debate about measuring cartridge case pressure rings. I use this measurement to establish stop points for the .30-30AI. Using Remington brass I do not allow any load to exceed .422" at the pressure ring. I find that most new unfired brass measures about .417" to .4175" at the pressure ring. I fire a fireform load with this new brass and then full length resize. Most cases will then measure somewhere around .420". I base this on several observations made over a long time with the standard .30-30. I find that the modern lever action rifles appears to operate normaly using a .0018" pressure ring expansion in the standard caliber. This taken from new brass that has been fireformed with a full power load and then full length resized.I have never experienced sticky extraction with the standard .30-30 loaded to this level.
Based on this I load the .30-30AI to .0002" over what I load the standard cartridge to.
Different p[owders will give you a different appearance of pressure when loaded to these levels. I find the ball powders such as Hodgdons BLc2 and Winchester 748 to be rahter unpredictable up at my upper load levels. This is to say on a warm day the pressure ring measurement may read within my .422" stop point but other indications are "alarming".
Another Ball powder - Hodgdon 335 - seems to be interchangable grain for grain with hodgdon 4895SC.
Based on my observations using Ball powders I have stopped using them for maximum charges in the .30-30AI. I do not use IMR 3031 for maximum charges with bullets above 130 grains.

If you have a micrometer handy take a look at some of your cases before and after. this is an interesting subject as all rifles are individuals. We have established our stop points using a Marlin 336 and a Winchester Model 94AE and for our rifles the measurement makes the ammunition interchangeable. I have an older top eject Model 94 reamed to .30-30AI and this rifle will not tolerate these higher loads. I limit this rifle to the .4218" measurement.

Keep us posted!
__________________
slim
Reply With Quote
  #3  
Old 04-03-2017, 08:09 AM
Registered User
 
Join Date: Mar 2017
Location: NE Texas (Texarkana)
Posts: 7
William Iorg, Dollar Bill states that you may be able to help me.
I have a Savage Mod 840 in .30-30 Win and would like to have it converted to .30-30AI. I am looking for a gunsmith that would be willing to do this conversion.
The gunsmiths in my area, (Texarkana Texas) which are far and few between, have never heard of the Ackley Improved conversions.
Reply With Quote
 
  #4  
Old 04-03-2017, 03:38 PM
Beartooth Regular
 
Join Date: Nov 2001
Posts: 6,251
I would contact David White who posts on this board as Deer Assassin. David knows quite a lot about Ackley Improved cartridges. He is a gunsmith working in the Grove Oklahoma area which is not really very far from you.
David has pictured a few of his .30-30AI rifles on this forum. David made up a .17 Ackley Improved Hornet for my wife a few years ago. She enjoys shooting this rifle quite a lot.
Reaming the .30-30AI chamber is not difficult but David will take that little bit of extra time setting up your chamber.
His web page was D&T G7nsmithing but I don't have a link on this tablet.

Heading South I would try Ranger Point Precision. I have not done business with them but I would like to. They are in the Houston area.
Tnhunter and Dollar Bill like this.
__________________
slim
Reply With Quote
  #5  
Old 04-03-2017, 09:21 PM
Dollar Bill's Avatar
Beartooth Regular
 
Join Date: Sep 2013
Location: Huntsville, AL
Posts: 1,137
Quote:
Originally Posted by KragNut View Post
William Iorg, Dollar Bill states that you may be able to help me.
I have a Savage Mod 840 in .30-30 Win and would like to have it converted to .30-30AI. I am looking for a gunsmith that would be willing to do this conversion.
The gunsmiths in my area, (Texarkana Texas) which are far and few between, have never heard of the Ackley Improved conversions.
Those must be some pretty young gunsmiths!

I rechambered my Marlin 336 to P.O. Ackley's version sometime in the late '70s. My goal was to benefit from the sharper shoulder, size cases to index off that shoulder rather then the rim and thus improve case life. Worked like a charm.

Back then, as the Marlin was my only rifle, I experimented extensively with everything from Lyman 210 grain 311284s to 110 Speer spire points. For standard deer loads, 748 was my choice in the original chamber but when it was rechambered, AA 2495 provided very stable loads.
broom_jm likes this.
__________________
Good shooting...
Bill
Reply With Quote
  #6  
Old 04-04-2017, 03:04 AM
Beartooth Regular
 
Join Date: Sep 2009
Location: Mooresville, IN
Posts: 11,928
If I was shooting a 30/30 AI, I would for sure give the 160gr FTX bullets (both 30/30 and 308ME version) a look. These have a higher BC to retain that extra velocity.

Any round that pops the lever open needs to be dropped at least a grain, IMO.
Bong Son Buck likes this.
__________________
"My serious suggestion is to buy one rifle and then buy another one. And another." JBelk
Reply With Quote
  #7  
Old 04-04-2017, 10:07 AM
Beartooth Regular
 
Join Date: Nov 2001
Posts: 6,251
[QUOTE=Dollar Bill;1611362]Those must be some pretty young gunsmiths!

QUOTE]


Thats what I thought!
I am reluctant to suggest a person ream his own .30-30AI chamber these days. I have reamed four without trouble but a few people have been less than satisfied with the results. For the .25-35AI and the .30-30AI it is very difficult to have a problem. Still, a few have managed….
This is a link to a thread from awhile back on hand reaming the chamber. And a picture just to show you can be pretty unsophisticated and still ream an accurate Improved chamber in a levergun. This one a Model 94.
https://www.shootersforum.com/gunsmi...-chambers.html

Use lots of lubricant and clean the reamer, frequently, are the key points. David White and RPP do this work all the time. If there are problems feeding they are set up to solve them quickly.
Attached Thumbnails
30-30 AI load data-ream5.jpg  
__________________
slim
Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
What do you guys think about this load and Reduced Load Calculators? briankmagby Handloading Procedures/Practices 8 09-14-2005 10:05 AM
35 Rem load data changed PistolDave Handloading Procedures/Practices 18 03-02-2005 10:07 AM
ROLL CRIMPING and LOAD DATA rhouser Shotguns, Shotgunning, and Shotshell Reloading 10 04-12-2004 04:18 PM
Load Data Disparity? 45-90 WCF Baggsy-Wy Handloading Procedures/Practices 30 03-22-2004 05:01 AM
Lyman 48th. Edition Load Manual William Iorg Books 1 06-05-2003 11:11 AM


All times are GMT -8. The time now is 09:02 PM.

< Contact Us - Shooters Forum - Archive - Privacy Statement >

 
 

All Content & Design Copyright © 1999-2002 Beartooth Bullets, All Rights Reserved
Privacy Statement | Contact Webmaster
Website Design & Development By Exbabylon Internet Solutions
Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1