Dies, OAL and technical stuff

CBH Australia

AH elite
Joined
Feb 10, 2019
Messages
1,629
Reaction score
2,046
Location
NSW Australia
Media
16
Hunting reports
Africa
1
Member of
Sporting Shooters Association Australia, Africa Hunting website!!!
Hunted
Australia and now South Africa
Ive, been loading maybe 25 years, slowly trying to accumulate a few better things. I have one cartridge that I think I have seated to for out simply by using the manual listed way of screwing the die down, back a 1/4 turn, test it fits etc. I think I have one lot of .243 with the projectile a little out and it’s sitting on the lands and I will take a measurement.
I’ve been reading on die types from the simple Lee collet neck sizer dies to the various competition dies with bushings and micrometers. It seems the micrometer is redundant once set unless intending to adjust or vary depth regularly or set different projectiles in that die using a pre determined measure.

I don’t think hunters need hair splitting accuracy or clover leafs and I am not chasing perfection but I would be happy to brag if I was getting 1/2 Moa from a hunting load. 3/4 to an inch is probably sufficient bigger than that I would wonder if I can improve.

What methods do people use? Coal gauges, dies, measures?
How far do you go if you have a rifle that may be used at 300 or you just want an accurate rifle?
 

JLF

AH enthusiast
Joined
Jul 18, 2020
Messages
255
Reaction score
225
Media
12
Nunca consideres que un rifle de caza debe tener la precisión de un rifle de francotirador. Mi rifle tiene el primer cero a 25 metros y el segundo a 125 metros, me alcanza y tiene más que suficiente para cazar ...
If at 100 meters it groups in 8 cm, for hunting it is good.
 
Last edited:

JLF

AH enthusiast
Joined
Jul 18, 2020
Messages
255
Reaction score
225
Media
12
To improve precision I play with the OAL. I also perform partial total recalibration. Take out the pin to remove the primer and I remove the primer by blow, the reason is so that the neck expander of the die in conjunction with the pin to remove the primer does not produce a deconcentricity in the neck of the sheath. I make these reloads for shooting practice.
They are not very sophisticated methods but the results are good for what I do. For hunting it reaches me and it exceeds.
 
Joined
Oct 28, 2018
Messages
3,084
Reaction score
4,592
Location
Wyong new south Wales Australia
Media
8
Hunting reports
Africa
1
Member of
SSAA
Hunted
Australia
Ive, been loading maybe 25 years, slowly trying to accumulate a few better things. I have one cartridge that I think I have seated to for out simply by using the manual listed way of screwing the die down, back a 1/4 turn, test it fits etc. I think I have one lot of .243 with the projectile a little out and it’s sitting on the lands and I will take a measurement.
I’ve been reading on die types from the simple Lee collet neck sizer dies to the various competition dies with bushings and micrometers. It seems the micrometer is redundant once set unless intending to adjust or vary depth regularly or set different projectiles in that die using a pre determined measure.

I don’t think hunters need hair splitting accuracy or clover leafs and I am not chasing perfection but I would be happy to brag if I was getting 1/2 Moa from a hunting load. 3/4 to an inch is probably sufficient bigger than that I would wonder if I can improve.

What methods do people use? Coal gauges, dies, measures?
How far do you go if you have a rifle that may be used at 300 or you just want an accurate rifle?
@CBH Australia
Chris I use a Lee press and dies and produce good ammo.
I mainly full length size and to determine COAL I just seat a projectile in the case and chamber it. This pushes the projectile into the case and leaves land marks on the bullet. Measure the marks and subtract another 30 to 50 thou depending on the distance you want from the lands.
e.g. COAL llenght with marks 3 inch
Land marks 0.10 long
You want the bullet 50 thou off the lands the
3- 0.10= 2.9
2.9- 0.050= 2.85 coal.
Quick and simple.
I use a collet die for my 303 and sometimes for the 308.
With the 303 depending on the projectile the collet die m at not be small enough so I run the neck into a 308 die and job done.
Bob
 

JLF

AH enthusiast
Joined
Jul 18, 2020
Messages
255
Reaction score
225
Media
12
To measure the OAL, make this tool which is a copy of the Hornady



 

Attachments

  • Medidor de OAL 2.jpg
    Medidor de OAL 2.jpg
    2 MB · Views: 8
  • Medidor de OAL 4.jpg
    Medidor de OAL 4.jpg
    2.3 MB · Views: 10
Last edited:

PARA45

AH elite
Joined
Jun 15, 2010
Messages
1,853
Reaction score
2,800
Media
51
Articles
3
Hunting reports
Africa
1
USA/Canada
2
Member of
NRA LIFE MEMBER
Hunted
South Africa, Nicaragua, FL, CA, SD, GA, SC, CO
I start with book OAL, and work from there. Once I have a load my rifle likes, then I'll tweak and play with the OAL (in/out). I shoot a lot of Weatherby calibers, and they are notorious for their free bore, so being close to the lands is not an option with Weatherbys. If it fits in the magazine and it is within book specs I'm good.
 

Forum statistics

Threads
36,224
Messages
682,501
Members
62,435
Latest member
DawnSchias
 

 

 

Latest profile posts

Rickmt wrote on Justbryan's profile.
What is your new shorter rifle? Thanx Bryan !
raamw wrote on neckdeep's profile.
Supply your address so I can get shipping Paypal Friend (no ) fee) is fine
Viral_SIGness wrote on Rifle57's profile.
Great person to deal with. Fast communication and quick shipper!
Sarg wrote on Philippe's profile.
Hello Philippe, did you get my PM that I sent you earlier ?

Regards Mark
raamw wrote on AfricaHunting.com's profile.
Can you advise me to properly post pix, sometimes I get it right sometimes not
 
Top