DO I UNDERSTAND correctly? Newbie help.

[Mysavageisaccurate]

Hi, I am a newbie of reloading world.

So, I’d like to check my understanding of reloading terms and knowledge.

A. Shoulder Bump
What is the standard for -0.002?. For example, I have 6.5CM Aero Solus. Once I fired, the brasses will be stretched out, not the same length, from the base to neck, It might be various like 1.536” to 1.538”. So, how should I do then. Put the FL sizing die into press, and makes all brasses into 1.534”?

Or

If I have a factory brass, never fired brass, Hornady Brass, put that brass into Hornady headspacer, and make caliper in zero. So, the never fired brass, is in 0.000. After that, all fired brass, and make them into -0.002 through the FL sizing die. is that right?
B. Neck tension.
I have a Hornady Custom Grade die for 6.5CM. But, I will return it cuz, I am thinking about purchasing the Forster Full length “Bushing” die, cuz I want to put the neck tension too.
Same like Shoulder bump, I need to check the diameter of the 6.5CM brass neck, so, if it is 0.409. By using Full Length “Bushing”die, make it to 0.407. is that right?

Or, I have a Lee ultimate neck sizing die. Can I use this one too?

Make it simple that
1. Just using a Full length “Bushing” Die, so that you can do the shoulder bump + giving neck tension in one action OR
2. By using Full length sizing die, make it shoulder bump, and change the Neck sizing die, and giving neck tension.

C. Load Development.
So, I am gonna use H4350, starting from 36Gr, increase by 0.3 grs, not reach up to maximum grains, 40grs. After I shoot 5 shots of each powder mass. I can get the result of ES/SD/ and Group Size. So, my question is, which factors is most important? ES/SD or Group size?
If I knew the best value of ES/SD or Group size, then I will decide the “Seating depth”. Am I understanding correctly?

 

[secondofangle2]

This is what happens when you learn things on the internets

 

[Mysavageisaccurate]

This is what happens when you learn things on the internets

yeah. That’s ture

 

[n2ishun]

When did people forget how to just go shoot a gun and have fun doing it ?

 

[straightshooter1]

Hi, I am a newbie of reloading world.

So, I’d like to check my understanding of reloading terms and knowledge.

A. Shoulder Bump
What is the standard for -0.002?. For example, I have 6.5CM Aero Solus. Once I fired, the brasses will be stretched out, not the same length, from the base to neck, It might be various like 1.536” to 1.538”. So, how should I do then. Put the FL sizing die into press, and makes all brasses into 1.534”?

Or

If I have a factory brass, never fired brass, Hornady Brass, put that brass into Hornady headspacer, and make caliper in zero. So, the never fired brass, is in 0.000. After that, all fired brass, and make them into -0.002 through the FL sizing die. is that right?
B. Neck tension.
I have a Hornady Custom Grade die for 6.5CM. But, I will return it cuz, I am thinking about purchasing the Forster Full length “Bushing” die, cuz I want to put the neck tension too.
Same like Shoulder bump, I need to check the diameter of the 6.5CM brass neck, so, if it is 0.409. By using Full Length “Bushing”die, make it to 0.407. is that right?

Or, I have a Lee ultimate neck sizing die. Can I use this one too?

Make it simple that
1. Just using a Full length “Bushing” Die, so that you can do the shoulder bump + giving neck tension in one action OR
2. By using Full length sizing die, make it shoulder bump, and change the Neck sizing die, and giving neck tension.

C. Load Development.
So, I am gonna use H4350, starting from 36Gr, increase by 0.3 grs, not reach up to maximum grains, 40grs. After I shoot 5 shots of each powder mass. I can get the result of ES/SD/ and Group Size. So, my question is, which factors is most important? ES/SD or Group size?
If I knew the best value of ES/SD or Group size, then I will decide the “Seating depth”. Am I understanding correctly?

You're particular chamber determines the length of your headspace and where you go from there. Never go by what virgin brass is set at. Once fired brass may not be fully fire formed and need bumping back. You can test that by chambering a fired case and if it goes in easy enough, no need to bump it. Probably after the second firing, you'll likely need to bump the shoulder back then.

 

[Mysavageisaccurate]

When did people forget how to just go shoot a gun and have fun doing it ?

When I pay for credit card bill used for new gears, maybe?

 

[Smokin7s]

I can save you some trouble if you care to listen, buy LE Wilson or Redding dies and bushings, even if you do see that you bumped it .002 always check that your bolt closes smoothly on a FEW of them with your firing pin assembly out of your bolt, throw that lee thing away, and finally always no matter what you’re loading for use a full length sizing die with the appropriate neck bushing.