Reloading Rifle Rounds

[MongooseV8]

So tension is a myth, and now so is case head separation?

If headspace doesnt contribute to case head separation then what causes it?

[fguffey]

So tension is a myth, and now so is case head separation?

Reloaders talk about neck tension; none of them can measure the tension. That is not my fault.

Case head separation; understanding case head separation is beyond the reloaders ability to comprehend.

I can determine if the case will suffer case head separation before pulling the trigger. I can modify a go-gage to a go-to infinity gage. The one thing I can not do is provoke reloaders to think. Again, I can measure the length of the chamber from the shoulder/datum to the bolt face three different ways. I do not know of one reloader that has that much ambition.

F. Guffey

[fguffey]

Before I pulled the trigger on the case, I knew the case would ignite smokeless powder and a mass of copper and lead would shoot out the barrel and hit a target. And then there is the story about how bullets are held in the case with bullet hold

If I had the luxury to disagree with you I would. If you knew all of that we would not be having this conversation.

F. Guffey

[fguffey]

And then there is the story about how bullets are held in the case with bullet hold

How do you measure bullet hold? I want all the bullet hold I can get, that would be close to 45 pounds.

I made a special effort to kick bullet hold up, I exceeded 100 pounds.

F. Guffey

[bsumoba]

Reloaders talk about neck tension; none of them can measure the tension. That is not my fault.

Case head separation; understanding case head separation is beyond the reloaders ability to comprehend.

I can determine if the case will suffer case head separation before pulling the trigger. I can modify a go-gage to a go-to infinity gage. The one thing I can not do is provoke reloaders to think. Again, I can measure the length of the chamber from the shoulder/datum to the bolt face three different ways. I do not know of one reloader that has that much ambition.

F. Guffey

F Guffey, we are tired of this....

For the last time, and if you want to get technical, a bullet with a diameter of 0.264", seated into a case neck with an ID of 0.262" has an INTERFERENCE fit of 0.002". This is what us normal people do because many of us do not have a tool to measure the force required to push or pull the bullet out of its case, which is what I am guessing you are referring to. So, yes we can measure it.

If this is not good enough for you, then you can buy a Hydro bullet Seater and measure seating pressure that way. This is about as close to measuring seating pressure, or the force required to seat a bullet.

If I had the luxury to disagree with you I would. If you knew all of that we would not be having this conversation.

F. Guffey

You do it everyday with everyone on this site, so yes, you have the luxury. It is not my fault that your lingo and verbage don't jive well with the rest of us here. And I do not claim to know everything, but what I do know is that cases sized too much will experience case head separation and because we measure sized cases generally by the amount the shoulder has been pushed back or sized down, then cases sized down from its fired case in excess of 0.005-0.007" shoulder bump will experience a high rate of of this failure.

How do you measure bullet hold? I want all the bullet hold I can get, that would be close to 45 pounds.

I made a special effort to kick bullet hold up, I exceeded 100 pounds.

F. Guffey

100 pounds of bullet hold. You so strong!

I use 0.002" interference fit and 99% of the shooters on this forum and others know what I am talking, and can apply that information to their reloading practices today.

[fguffey]

Thank you for the kind words.

It was not easy, I had to make a tool that I did not know existed. For me there is nothing entertaining about shooting bullets with 100+ pounds of bullet hold. I would have used neck tension if I had a gage that measured neck tension or if someone had a conversion that went from pounds to tensions.

F. Guffey

[bsumoba]

Thank you for the kind words.

It was not easy, I had to make a tool that I did not know existed. For me there is nothing entertaining about shooting bullets with 100+ pounds of bullet hold. I would have used neck tension if I had a gage that measured neck tension or if someone had a conversion that went from pounds to tensions.

F. Guffey

Use a 0.002" interference fit (a.k.a "two thousandths neck tension" )

/thread

[fguffey]

Use a 0.002" interference fit (a.k.a "two thousandths neck tension" )

I go from a .002" interference fit to bullet hold only because I can measure bullet hold in pounds.

I have tension gages; problem, all of my tension gages measure in pounds. I understand there are more reloaders that talk about neck tension with out an ability to measure it or convert it to pounds than there are guitar pickers in Nashville.

I know .002" interference fit does not convert to a number that indicates bullet hold because the ability of the neck to hold the bullet changers.

F. Guffey

[MongooseV8]

It actually can be converted to what ever form of unit measurement you want to use. Everything is measurable.

[LynnJr]

BSumoba
Don't get caught up in Guffeys nonsense.
His 0.127 clearance is the same as you making 6 Dasher brass from 6 Benchrest brass. He thinks he has invented the wheel and he hasn't.
What he doesn't tell you is that if he resized that same piece of brass so it had the same 0.127 clearance 3-4 times it would indeed have casehead separation issues.
As Randall pointed out the extractor keeps the casehead from moving forward more than 0.003 - 0.005 and while this does thin out the web area it won't separate a casehead on one firing.
He doesn't even know what a false shoulder is or how it works when creating wildcat cases as he relies on the extractor.
Why he feels the need to post this outdated nonsense on this thread is anybodies guess.

To the OP 4895 is an excellent powder for the 30-06 and a new reloader.
What you will find is powder variation charge to charge will give you vertical in your groups so attention to this will help.
Next seating depth length is important as is consistency.

[J-cat]

The real question, tho, is can you bump a false shoulder on a case with full body support?

[LynnJr]

F Guffey
Can you explain how to make 14 Flea rounds from 50 BMG rounds?
Just tell us about doing the primer pockets if you can?

[fguffey]

Take care

Thank you, if you do not understand what was said just say you do not understand.

F. Guffey