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Welcome to this community for the Creedmoor metallic cartridges enthusiasts. We have been sharing information here since February 2010 and have grown quite a bit since. Please join us and share your experiences with the Creedmoor cartridges, and also please spread the word about the forum. As we continue growing, the forum will become an even greater resource for all of us.


Recent Posts
21
Reloading / Re: Lee neck sizing collet die redux
Last post by jvw2008 -
Being curious about what Lee means when they recommend pushing the handle a minimum of 25lbs, I ran a quick experiment this morning.

Using a Forster CoAx press with a Forster stubby handle, I set a 200kg (440lb) capacity load cell on the shell plate and zeroed it. I let the handle gently down onto the load cell; 28lbs, that's without applying any force to the arm, just gravity at work. Using a Lyman trigger gage attached to ball of the stubby, I pulled to 11lbs 10oz (the gage does not read above 12lbs), the load cell reports over 400lbs of force  :o

So, I'm still not sure what the 25lb suggested force Lee recommends but, I'm pretty sure they are not referring to the ram force on the die  :D.

If Lee means applying 25lbs to the press arm, that needs to qualified according to the mechanical advantage offered by the press itself. If approximately 12lbs of force on the stubby lever of a CoAx can generate a compressive force on the ram in excess of 400lbs, that will be very different with the standard length arm.

Anyway, we all have our techniques for using the Lee collet dies, not trying to change my mind, or anyone else's, just curious is all.

You are starting to worry me. 🙄😂😋
22
Reloading / Re: Lee neck sizing collet die redux
Last post by Roaneman -
I'm thinking their tech writer was having a bad day.  I'm not sure can you "standardize" the pressure as a number.  My press may have a longer handle than yours for starters.

After you guys explained to me how you do it I've had no further problems.  This reloading game consists of learning, common sense and of course advice from the veterans. 

Roaneman.
23
Reloading / Lee neck sizing collet die redux
Last post by bikemutt -
Being curious about what Lee means when they recommend pushing the handle a minimum of 25lbs, I ran a quick experiment this morning.

Using a Forster CoAx press with a Forster stubby handle, I set a 200kg (440lb) capacity load cell on the shell plate and zeroed it. I let the handle gently down onto the load cell; 28lbs, that's without applying any force to the arm, just gravity at work. Using a Lyman trigger gage attached to ball of the stubby, I pulled to 11lbs 10oz (the gage does not read above 12lbs), the load cell reports over 400lbs of force  :o

So, I'm still not sure what the 25lb suggested force Lee recommends but, I'm pretty sure they are not referring to the ram force on the die  :D.

If Lee means applying 25lbs to the press arm, that needs to qualified according to the mechanical advantage offered by the press itself. If approximately 12lbs of force on the stubby lever of a CoAx can generate a compressive force on the ram in excess of 400lbs, that will be very different with the standard length arm.

Anyway, we all have our techniques for using the Lee collet dies, not trying to change my mind, or anyone else's, just curious is all.

 
24
Reloading / good feeling
Last post by LeadHammer -
I finally found time to prep 75 Hornady brass last night, I have been wanting to test that tuner.......... anyway I think this is my best go yet. 75 brass, 0 designated to sighters. All of the body die press felt good and results were good, same of course with the collet die. I did find three primer pockets too loose so I reused the primers and squished the brass. Cut one in half again and no case head separation concerns at all still. 12th firing.
25
Reloading / Re: AMP Press
Last post by jvw2008 -
Watched the whole thing. Very poor approach to conducting a controlled test on John’s part in my opinion. Way too many arbitrary decisions on the fly; using guesses as to what is relevant and what isn’t. Those steps then followed by the assumption that one outing in a switchy wind would prove or disprove the value of the loading data. From a controlled test standpoint this was a cluster “you know what”. He still came away thinking there was some value in his sorting protocol. Hope the guy gets better with the equipment and test design before he puts any more garbage on the internet.
26
Reloading / Re: How Do I Full Length Resize Without Adjusting Neck?
Last post by bikemutt -
May as well flog this horse one more time  ;D

I came across a technique to adjust the jam number from the Stoney Point (Hornady) tool which I plugged into an Excel spreadsheet. I make no claims as to it's accuracy, I'm just the messenger.

Anyway, I took measurements using both the Hornady insert in their headspace comparator, and the Sinclair stainless insert. The Sinclair inert registers real close to the shoulder-body junction, the Hornady insert registers about halfway down the shoulder. With the Hornady insert, the jam adjustment is 0.007", with the Sinclair it's 0.005", adjusted jams 2.275" and 2.207" with respect to each gage insert.

Subsequent to these measurements, I also disassembled my bolt and used the bolt drop method to determine jam, by then I was using the Sinclair insert exclusively, that jam number is 2.213". So, without adjustment, the gauge difference is 0.011", with adjustment it's 0.006". 

It's fair to note that these measurements were made at the same time, throat erosion may have stretched the difference, I don't have sufficient data to speculate what that might be,
 

27
Bolt Action Rifles / Re: 6 mm dasher
Last post by MJeff23 -
I had the heavy bolt lift with the original Alpha Dasher brass, but have not with the new OCD brass.  Beautiful rig Bob!
28
Reloading / FYI - PRIME 6.5 CM brass group buy.
Last post by sportacus -
Don't have a dog in this hunt.  Got e-mail announcing group buy of their brass.  100, 500 or 1000 cases.  $1.29 per case.  Did not dig to figure out manufacturer.  Still holding a lot of their original 130 OTM and those cases are Norma.  That changed after PRIME's legal difficulties a few years ago.
29
Bolt Action Rifles / Re: 6 mm dasher
Last post by autoxforfun -
Grant and Dave,  thanks for the insights.  I thought that perhaps it was the ejector but didn't think it would be 'that' strong to dent the brass.  All of the Alpha brass was new and unfired.  The bolt lift was not bad but more than I expected.  I'll keep an eye on it once I get all for brass thru one cycle.
30
Reloading / Re: AMP Press
Last post by hdf4358 -
Anyone interested in the AMP press should check out the F-Class John channel on YouTube. He recently posted a video where he uses the press to compare seating pressure in 3 lots of brass, each of which were prepared differently. Turns out the "pretty" graphs that show consistent seating pressure were among the most inconsistent groups at the range. Begs a number of questions that you can answer for yourself.

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