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  #1  
Old 03-14-2010, 4:12 PM
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Default K&M Arbor Press with Force Measurement

Since I can't send Randall a PM...

http://www.precisionreloading.com/mm...de=ARBOR_PRESS
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  #2  
Old 03-15-2010, 7:38 PM
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That seems a little overkill, especially since you need to buy a whole new set of dies to use that thing.
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  #3  
Old 03-15-2010, 7:41 PM
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Randall wanted to see it... I think he is going to mount a force gauge on his arbor press. I have both dies arbor and std.
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  #4  
Old 03-15-2010, 7:43 PM
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Quote:
Originally Posted by phish View Post
That seems a little overkill, especially since you need to buy a whole new set of dies to use that thing.
It's not if you have a gun with a high dollar barrel with a match/custom chamber.
If you want consistency, this is the way to go about getting it.
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  #5  
Old 03-15-2010, 8:12 PM
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*shrug*, don't know of too many shooters that own such a setup

although I've been burning my spare time working on a home brew chamber pressure setup, so it's a matter of where you want to spend your time and on what projects

If anybody has extensive data that shows the benefits of this, by all means share. Not saying that it isn't a way to gain consistency, but it's not the only way. It's kind of like the difference between explicit and implicit differentiation, you still get the same result.
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  #6  
Old 03-15-2010, 8:42 PM
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Seems like over kill to me. I've loaded some amazingly accurate rounds rounds off my cheap Lee 0-press. I think there are more important things to focus on.
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  #7  
Old 03-15-2010, 9:24 PM
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Quote:
Originally Posted by phish View Post
*shrug*, don't know of too many shooters that own such a setup

although I've been burning my spare time working on a home brew chamber pressure setup, so it's a matter of where you want to spend your time and on what projects

If anybody has extensive data that shows the benefits of this, by all means share. Not saying that it isn't a way to gain consistency, but it's not the only way. It's kind of like the difference between explicit and implicit differentiation, you still get the same result.
did somebody say explicit???? I am sure thats not what your talking about, but it caught my eye.....LOL

I have seen many people reloading at the range, but today there was a person that was seating his black powder loads with a force guage/scale...He would seat his bullets to 50#'s of whatever scale it was...didn't ask him if it was PSI, plain old pounds or what, but he stated that it helped him with being consistant with his muzzle loads...made sense to me...

Whatever floats your boat....
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  #8  
Old 03-16-2010, 12:21 PM
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I am not close to needing a pressure gauge for reloading... But if you'r Randall and have the gauge, press and the abilities to machine the parts needed it might be cool. Worst case you could remove the loads that had too much or little seating pressure.

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Originally Posted by Bug Splat View Post
Seems like over kill to me. I've loaded some amazingly accurate rounds rounds off my cheap Lee 0-press. I think there are more important things to focus on.
Not if you have everything else covered. Some people are just looking for the last bit of improvement.
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Old 03-16-2010, 3:32 PM
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Quote:
Originally Posted by usdmgtr View Post
Not if you have everything else covered. Some people are just looking for the last bit of improvement.
Good point. I guess consistency has no limit as long as your bullets aren't all going through the same hole.

Just had a thought of how to categorize shooters....

Full auto guys = A.D.D.
Bench guys = O.C.D.

Last edited by Bug Splat; 03-16-2010 at 8:19 PM..
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  #10  
Old 03-16-2010, 3:35 PM
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LOL
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  #11  
Old 03-16-2010, 8:18 PM
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While thinking about this on the way to work, this force gauge setup does have merit. It would be interesting to know what the seating pressure really is for different case neck tensions, especially the std dev and correlate that to the load that yields the best accuracy. Instead of just saying "I get best results with X neck tension", you can now say "I get best results with X neck tension which requires Y seating force."

it's good to be working again...
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  #12  
Old 03-18-2010, 4:25 PM
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Quote:
Originally Posted by phish View Post
That seems a little overkill, especially since you need to buy a whole new set of dies to use that thing.
Not if you ALREADY load with hand dies...

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  #13  
Old 03-18-2010, 4:28 PM
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Quote:
Originally Posted by 264charlie View Post
Worst case you could remove the loads that had too much or little seating pressure.
This i exactly the test I am going to run.
Load 50 rounds, sort them by seating pressure.
Load 20 more without sorting.
Fire "control" groups with the un-sorted rounds.
Fire "test" groups with the tension-sorted rounds.
Fire a final "extremes" group with the highest and lowest tension rounds.

If there's a notable difference between rounds, I'll use the tension-sorted rounds for 600 and beyond and then the others in closer.
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Last edited by ar15barrels; 03-18-2010 at 4:30 PM..
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  #14  
Old 03-18-2010, 4:32 PM
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Quote:
Originally Posted by Bug Splat View Post
I guess consistency has no limit as long as your bullets aren't all going through the same hole.
If you move the target further away, you can extend the limit considerably.
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  #15  
Old 03-18-2010, 6:02 PM
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Hey ar15barrels, u like the chargemaster? U use it for all ur lr ammo?
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  #16  
Old 03-18-2010, 7:08 PM
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Quote:
Originally Posted by Mesa Defense View Post
Hey ar15barrels, u like the chargemaster? U use it for all ur lr ammo?
Yes and yes.
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