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21st Century Shooting Hydro Bullet Seater

I put a small scale under the die in my 21st century. It showed 15 lbs right when the gauge started to move. 20 PSI - 35 lbs of force.

It really doesn't matter the actual force, it is the consistency that matters.

I also agree that EVERYTHING matters when shooting for group. I'm a score guy, so I'll leave the group discussion to the experts.





Keith, if you can shoot smaller groups in testing you will shoot better scores at a match..... jim
 
I have the 21st century hydro seater, but unlike the other posters I have a great deal of difficulty deciding what the pressure is. Is it when the bullet first starts to move? I see one comment about going slowly and that may be my problem. Any hints about proper technique would be helpful.
 
2 things the hydro press will teach you.

how inportant brass prep is.

how to get the inside of the necks consistent. i like leaving the carbon undisturbed but consistent whatever your method will show on the gauge.
 
Neck tension and seating force are separate things. Neck tension is controlled by sizing. That's it. The spring of the brass provides the normal force (the force acting radially into the bullet).

Seating force is the force that acts in the axial direction(along the barrel), which is dependent on neck tension, friction, whether or not the bullet is moving, alignment, boattail shape etc.

As to whether this has any impact on the release of the bullet is anyone's guess.
 
Neck tension and seating force are separate things. Neck tension is controlled by sizing. That's it. The spring of the brass provides the normal force (the force acting radially into the bullet).

Seating force is the force that acts in the axial direction(along the barrel), which is dependent on neck tension, friction, whether or not the bullet is moving, alignment, boattail shape etc.

As to whether this has any impact on the release of the bullet is anyone's guess.

well like most things in shooting it depends on what you are trying to do. if you are looking to reduce your group size by a tenth from my experience it helps. if you are a half an moa shooter you probably won't see the difference.
 
I have the 21st century hydro seater, but unlike the other posters I have a great deal of difficulty deciding what the pressure is. Is it when the bullet first starts to move? I see one comment about going slowly and that may be my problem. Any hints about proper technique would be helpful.

Use the highest reading before it drops and starts increasing again.
 
Love love love my 21st over my K&M. I always struggled for some reason with my KM but I’m sure it was just something I did weird. Like many here I don’t look to the actual number but more to a consistent number and feel across a set number of rounds. Anything above or below that average number or feel goes to blow offs. That being said I’m almost always in the same number range each time I load because I prep the same every time so I’m sure that number would change if I modified something in my loading setup.

And for me personally I find that a slightly faster (meaning not slow) action one the lever give me the most consistently low run out (<2/1000). If I go really slow on it my run out tends to jump about 1-2/1000. But that’s just me.
 
Mr. Guffey,
What in the world does your post have anything to do with either the OP question or the topic of repair?
I’m not trying to be critical, just trying to make sense of it.
Thanks,

Lloyd

I never said reloading is for everyone, I have been seating bullets and measuring the amount of effort since before the Internet. And then came the mob that got infatuated with neck tension. To catch you up, reloaders have tons of gigs used on the Internet talking about something they can not measure. I started with bullet hold, for me it has always been easier to measure bullet hold in pounds for one simple reason; I have tension gages, all of my tension gages measure in pounds. And then there is that part that you do not understand: There is no way to convert tensions to pounds.

F. Guffey

Maxing out a gage: That is a bad habit, it is possible to fix the gage but as someone else suggested it is not possible to fix stupid.
 
That's the way I do it - I have a graph on my PC that shows the exact starting force, it makes it easy to compare a series of readings, although it's calibrated in pounds it's really consistency I'm looking for.

I like the looks of the press. which one is it?
 
I did the same thing on pegging the gauge and now it no longer returns to zero. Sent it back to 21st Century to get it repaired or the gauge replaced at my expense. They did nothing, returned it and weren't interested in replacing the gauge. Their position was I didn't follow the directions...FYI
Ben
Hi Ben,,I don't recall this, I must have had a bad day. I didn't fix it?
Please call or email me. 260-273-9909
Thanks, John


I emailed 21st century about 2 years after i purchased their hydro press stating it was leaking oil. They sent me a brand new press head unit. No questions asked. You cant complain with that sort of after sales service.
 
I never said reloading is for everyone, I have been seating bullets and measuring the amount of effort since before the Internet. And then came the mob that got infatuated with neck tension. To catch you up, reloaders have tons of gigs used on the Internet talking about something they can not measure. I started with bullet hold, for me it has always been easier to measure bullet hold in pounds for one simple reason; I have tension gages, all of my tension gages measure in pounds. And then there is that part that you do not understand: There is no way to convert tensions to pounds.

F. Guffey

Maxing out a gage: That is a bad habit, it is possible to fix the gage but as someone else suggested it is not possible to fix stupid.

So you have been loading since before the internet, well that makes a whole lot of us on here. It sounds like you are just using different terms to do the same thing a lot of us do, so I'm not seeing the need to be caught up. For the less experienced reloaders on here, all you are doing is confusing them.
I say this because you contradict yourself here:
I have tension gages, all of my tension gages measure in pounds. And then there is that part that you do not understand: There is no way to convert tensions to pounds.

You could possibly be a great source of information on here if you would start using common terms that are known to the majority of the shooters on here, and quit talking down to folks like we are just dummies that jumped of the turnip truck this morning.
Regards,

Lloyd
 
And then came the mob that got infatuated with neck tension. To catch you up, reloaders have tons of gigs used on the Internet talking about something they can not measure.

1 Shot; there is no way we are saying the same thing, I have tension gages, I can not use the gages to measure tension because all of my tension gages measure in pounds. I am the only reloaders that measure the effort to seat a bullet in pounds, all other reloaders use tensions and they throw the term neck tension around like they understand it. I said many years ago I use interference fit and I use crush fit but there is no way to determine interference fit with tensions and there is no way to determine interference fit with tensions. And then there is the infatuation reloaders have with case head space, one member called SAAMI and told on me. SAAMI does not use the term head space on their case drawings, members on this forum and all other forums assumed the case had head space, when I told them the case does not have head space and SAAMI does not use the symbol for head space on their case drawings. And when I informed members on reloading forums the case did not have head space it just locked them up because they had years of gigs used up talking about something they knew nothing about.

I wonder just how vain these guys are when it comes to demanding attention. One member was claiming he was the author of a term, me? I did not care but one member said he was good at 'searching the archives'. He informed the reloader from the claims department e was not the author, and then he gave the results of the search.

Again, it locked him up, drove him to the curb. Again, I did not care.

And then there is constructive criticism and there is insults through innuendo.

F. Guffey
 
I am the only reloaders that measure the effort to seat a bullet in pounds,

F. Guffey

I'm not sure I quite understand what you're saying here Mr. Guffey. I though my load cell gauge (RE. post 28) showed exactly how much force, in pounds, it takes to seat each individual bullet. I was also, although I've never used one, under the impression the 21 C hydro seater indicated seating force measured in pounds.

I must have the wrong end of the stick - Where am I going wrong?
 
And I said many times there has to be something reloaders do not understand about reloading and now I can add there is something reloaders do not understand about gages. I have gages, lots of gages, when I use a pressure gage I am required to zero the gage. If I find I am spending too much time zeroing the gage I decide the gage is a cheap gage, for me? not a problem; I have replacement gages.

And then there is the gage I do not need, it is over a foot long and measures pressure in hundredth. From minimum to maximum it measures 1 pound.

F. Guffey

How is it you have so many and can't correctly spell the word "gauge"? :confused:
 

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