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Originally Posted by Sharpsman
My experience tells me that the major cause of case head separation is because loaded rounds are fired using cases that are too short!

Were you having a problem with case head separation?


Let go Brandon!

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No!


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Sharpsman, I think I put you on the defensive and I didn't mean to.

I should have said I agree with you on headspace being rather important and that I do it a different way.

Please accept my apologies Sir.


Let go Brandon!

My dyslexia is getting whores.

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No apology needed! I have skin akin to a Rhino.


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When I first started reloading my 22-250 and 300 mag I had case head separation. The cure was to simply back the die out a bit. Over working cases I was. Edk

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Yep, that`s what I was thinking...bad wind call.

Nice shooting.

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With the Whidden case gauge, you measure against Go/No Go Gauges? Or do you just go off the reamer print?


Let go Brandon!

My dyslexia is getting whores.

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I take a reading off the fired case! THAT is the chamber dimension for that rifle or the headspace reading!. The reading will generally be at the 0 reading of the gauge or damn close to it! I adjust my resize die such that I get that same 'reading' on all of the fired cases that I resize. Generally I can get maybe three firings or so before I will have to bump the shoulder back a bit for easy bolt closure!


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For many of my cartridges I just invert a 40 S&W case over the case mouth. The length of the whole shebang is my reference number. I size the rifle brass and check again with the "40 gauge." The difference in the lengths is the amount of shoulder bump.


"In the real world, think of the 6.5 Creedmoor as the modernized/standardized/optimized version of the 6.5x55/.260." John Barsness 2019
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Originally Posted by Sharpsman
I take a reading off the fired case! THAT is the chamber dimension for that rifle or the headspace reading!. The reading will generally be at the 0 reading of the gauge or damn close to it! I adjust my resize die such that I get that same 'reading' on all of the fired cases that I resize. Generally I can get maybe three firings or so before I will have to bump the shoulder back a bit for easy bolt closure!

Sounds very similar, if not the same as the RCBS Precision Mic.

John


If my people, who are called by my name, will humble themselves and pray and seek my face and turn from their wicked ways, then I will hear from heaven, and I will forgive their sin and will heal their land. 2 Chronicles 7:14
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Originally Posted by bsa1917hunter
That is a big target.. Good shootin though.


Big target or no, that is a small group for 900 yards!


“My horn is full and my pouch is stocked with ball and patch. There is a new, sharp flint in my lock and my rifle and I are ready. It is sighted true and my eyes can still aim.”
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900 yards is a really long way out there! Ice groups.

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God Save The USA!!


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Originally Posted by mathman
For many of my cartridges I just invert a 40 S&W case over the case mouth. The length of the whole shebang is my reference number. I size the rifle brass and check again with the "40 gauge." The difference in the lengths is the amount of shoulder bump.

I do this with some cases but use a shellholder. Shell holders have a big enouph hole that it fits 6.5 and slightly bigger calibers. Works great! For checking headspace I'll measure a new piece of brass than use .5 thou scotch tape on the head of my bolt until I get pressure closing the bolt. My new rifle I just put together headapaced 2 thou with new lapua brass.


Good bullets properly placed always work, but not everyone knows what good bullets are, or can reliably place them in the field
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Originally Posted by Sharpsman
God Save The USA!!

Nice work sharpsmen! I hope I can get mine to shoot that well!

I'm leaning more toward God let your kingdom come than save the USA! I'm not sure if this mess can be saved?


Good bullets properly placed always work, but not everyone knows what good bullets are, or can reliably place them in the field
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OUTSTANDING Shooting at 900. Target size means nothing when your stacking them in there like that. Group size says it all. Your explanation for target shape and size makes perfect sense. Much easier to spot when getting dialed in while trying to read wind/mirage down range

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