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Shoulder bump problem? Not far enough?

 
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  #8  
Old 10-19-2013, 03:31 PM
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Re: Shoulder bump problem? Not far enough?

or, you can get a new die
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Derek M.
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  #9  
Old 10-19-2013, 03:50 PM
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Re: Shoulder bump problem? Not far enough?

I use Redding body dies and a set of Redding stepped shell holders. Then set the die up to contact the shell holder for a firm cam over but not too much. In a few instances I have had to grind a small amount off the die body to get me in the middle of the set of shell holders and match up for a -.0015" to .002" shoulder set back off of fully fire-formed cases. This gives me easy repeatable set up and adjustment both ways. Using this method I run the cases through the body die each firing. If they need a set back they get it, if they don't they get none. I feel this keeps my cases in a consistent spec all the time.

So if I were to go to grinding I would be measuring what I took off very often and shoot for a head space of .0015" to .002" or a little more if desired.

Jeff
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  #10  
Old 10-19-2013, 04:56 PM
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Re: Shoulder bump problem? Not far enough?

FYI, Rem 700
and the brass doesn't fit in a friends 7mm either.

Greyfox, J E Custom
I'm not sure I want to try taking .010" off the shell holder or the die for that matter. I don't have the tools necessary to do it right.

SidecarFlip
I don't believe that an extended shell holder would accomplish anything? If I'm not mistaken the case depth going into the die would be limited by the belt? 7mm being a belted magnum?

Sully2
Where do I find these shimms your talking about?

Derek M.
I'm all for getting a new die if I new for sure it would work?

Broz
What does a body die do that a FL die wont? Stepped shell holders??? Are these thinner/shorter? would that be the same idea as the shimms that Sully2 mentioned? Again, wont I be limited by the belt?

Thanks for the suggestions and help. As of now no change.
BGG
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  #11  
Old 10-19-2013, 05:05 PM
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Re: Shoulder bump problem? Not far enough?

Quote:
Originally Posted by BillyGoatGruff View Post
Broz
What does a body die do that a FL die wont? Stepped shell holders??? Are these thinner/shorter? would that be the same idea as the shimms that Sully2 mentioned? Again, wont I be limited by the belt?

Thanks for the suggestions and help. As of now no change.
BGG
The body die just allows me to work on the case and neck in different steps. I feel this keeps run out to a minimum. I prefer doing the sizing in two steps. So the redding body die will not offer you more sizing unless you have a die that has an issue. I have seen that before too.

Redding offers a set of stepped shell holders that have the floor in .002" steps in height. This allows control on how much you size the brass and how much you push the shoulder back by controlling the amount you push the brass into the die.

I size belted cases with this method all the time. One of my favorite long range rifles is a 300 win.

If you have access to a belt sander and a dial or digital calipers you would be surprised how easy taking a few thousands off the die really is. Just keep it level and measure often.

Jeff
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  #12  
Old 10-19-2013, 05:39 PM
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Re: Shoulder bump problem? Not far enough?

Broz

I tried Sully2's idea of a shim. I took a case that was sized and measured .126"
I then slipped a .010"standard feeler blade gauge beneath the case and ran it through again.
Low and behold it worked! I got .116"! THANKS Sully2!
So I think these shell holders you describe will work. If I read this correct? they will step UP INTO the die in .002" increments from a standard shell holder?

Thanks guys for throwing ideas at me and helping me find a solution to the problem. This has been driving me crazy for two weeks now.

This might be slightly off topic.
I have all this brass. Federal was the worst followed by Hornady then Winchester
as far as finding cases that would fit. The cases that I had the best luck with was some nickel coated Winchester. What is the purpose of the nickel coating and is this type brass any good?

What are the general opinions on brass? What's best?

Thanks again, BGG
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  #13  
Old 10-19-2013, 05:53 PM
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Re: Shoulder bump problem? Not far enough?

Quote:
Originally Posted by Sully2 View Post
And if you have 3 different rifles for the same caliber while the grinding off matl from the die MAY suit one rifle perfectly...if COULD "ruin" cases for another rifle.

Hence the reason I wanted REMOVABLE shims that I can use part of the time and not use for other rifles rounds!
I have more than 3 in some caliber families (as you know). Just because I remove a portion of the base has no impact on how much the shoulder is bumped back, thats entirely dependent on what the base to shell holder distance is at the top of the ram stroke and nothing else. By grinding off 0.005, I'm not altering the internal physical dimensions of the die or impacting it in any way other than allowing more latitude in bumping a shoulder, if necessary.

If I'm loading for Tom's 308 Hart barreled rifle, I use a previously ignited case to determine proper headspace, FL resize one and check it in the firearm right then and there to insure the bolt closes properly. If I reload for my Savage, I do the same or for Linda's Sako or Rod's Remington, the procedure never changes. The length of stroke on the ram to the very top (and the coarse adjustment of the die body) does change.

No 2 production rifles headspace the same due to tooling inconsistencies among other factors, so, it becomes a matter of setting correct bump for each rifle. I don't mix (and neither does the group) loaded cartridges between like caliber firearms. If, someone in the group or myself buy new unfired factory rounds, once they get ignited, the empty brass is the segregated to that particular rifle/handgun and stays there until it becomes unsafe and then it gors to Omni-Source.
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  #14  
Old 10-19-2013, 05:55 PM
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Re: Shoulder bump problem? Not far enough?

Quote:
Originally Posted by BillyGoatGruff View Post
Broz
So I think these shell holders you describe will work. If I read this correct? they will step UP INTO the die in .002" increments from a standard shell holder?

Thanks again, BGG
Actually they limit the amount of case protrusion from a standard shell holder. So you would need to grind the die slightly. Then you would have adjustability as to how much you size. Most dies over size when it comes to shoulder set back and these holders allow you to control that. The good thing about them is once you find the proper step to get perfect head space you will be able to pull the die and replace it to your spec first time. Just note the step of the holder used, set up so the die contacts the holder with a cam over and each time you will size the same amount.

Jeff
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