Best Way To Setup Die For .001 Shoulder Bump

Mystic Precision said:
Funny how one can discount data and experience just because they don't like it. dismissing is so much easier then actually proving a point.

And it is wonderful how we can extrapolate to any extreme ... cause that is what you must be saying.

Anyone is free to accept or disagree. I just go by what I have seen in my testing over a couple of decades. Believe me or not, will not change my experiences and that typically includes sample sizes far larger then the norm.

my targets seem to agree with me.... as do my scores

I would love to see some internal volume testing of current manf Peterson, Lapua, and Starline brass... vs weight of course.

Doubt that is going to happen.... :)

Jerry

PS... you know the alloys are different when you trash a bunch of brass from the same manf BUT different lot and use a very precise annealer. Number of firings can also have an affect vs others from the same lot... but let's step away from real world testing. Far better to 'suppose'
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You are funny Jerry :)

You speak as though you are the only person on the internet who has been doing this for a long time. It's as though you are assuming the points I've made are theoretical and have not been proven.

As for imperial evidence, I don't need to provide any. That is entirely up to you, but you wont do it simply because it conflicts with your personal bias.
 
Maple57 said:
Do you realize that case mass variation affects velocity?

The person you know is a bench rest shooter huh... so he is an expert at short range shooting. I will assume that means 100-200 yards.

Do you have any effing idea how little muzzle velocity affects your vertical dispersion at such a close range?

Short range shooters can get away with murder on this, and only a complete fool would cast the advise of a 100 yard shooter on a 1000 yard discipline.

Advise is put fourth through the lens of ones own experiences. Be very careful about taking advice from a 100 yard shooter if you are a 1000 yard shooter.
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500m. You, just some internet tw@t with absolutely nothing of value to say. Onto the ignore list you go.
 
Gong Joe annealer arriving this Friday or sooner, so I’m looking forward to adding this process into my reloading efforts, especially for precision Center fire, which I have the rifle but need to work up some loads for competition. Mission for this fall is to get some pills that I can compete with and be ready for the 2023 season.
 
waynewjw said:
Gong Joe annealer arriving this Friday or sooner, so I’m looking forward to adding this process into my reloading efforts, especially for precision Center fire, which I have the rifle but need to work up some loads for competition. Mission for this fall is to get some pills that I can compete with and be ready for the 2023 season.
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Mine arrived yesterday. Like you, interested in getting it set up and working. - dan
 
Wow, some people sure like to make things complicated.

To the OP, start off simple. I agree with Jerry, use the brass you already have, especially if you have a good chunk of it that's from the same lot.

Keep things really simple, and find out for yourself what actually makes a difference and what doesn't. Make mistakes with the brass you already have. Test out velocities per charge weight, projectile seating depth, etc.

I don't weight sort brass, clean or uniform primer pockets (or deburr and all that nonsense). It's simple to create good quality ammo with single digit SD and low ES.

Start off simple, and test things for yourself. With enough testing, you'll begin to find out how much BS there is online about reloading...
 
Wow, lots to take in relating to brass weights by mfg, case volume, etc. I’m thinking that is way to complicated for me, although I could weigh the 500 cases I have. I will defer back to posters suggesting start with 20-40 brass, shoot the heck out of it to determine deficiencies in my methods and keep shooting to determine results. And let the games begin LOL
 
I realize whenever I read these type threads that I don't understand what you guys are talking about.

I resize, decap, clean, reprime cases.

Measure powder, dump powder into the case, insert appropriate bullet, seat it to arbitrary usually factory standard length.

Get acceptable hunting accuracy then go hunting.
 
Demonical said:
I realize whenever I read these type threads that I don't understand what you guys are talking about.

I resize, decap, clean, reprime cases.

Measure powder, dump powder into the case, insert appropriate bullet, seat it to arbitrary usually factory standard length.

Get acceptable hunting accuracy then go hunting.
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So, is there a question? Reloading, like shooting, can sometimes take on a life of its own. - dan
 
nathwald said:
Could you not bring your Fl die down another turn or so so you have the metal on metal contact without the cam over?
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But if you dont want cam over, why buy a press which has that feature? You also have to look at the ram and how it moves in the press. Some have had some real wonky results (assume bad offshore manf).

If you already have a cam over press, then definitely figure out how to NOT use that feature. And when you are testing, look for any type of backlash... movement under pressure and that has to include how the die is mounted. If there is any 'give' in a press, getting consistent sizing will be a PITA.

Why simple usually is easier to set up.

Jerry
 
Mystic Precision said:
But if you dont want cam over, why buy a press which has that feature? You also have to look at the ram and how it moves in the press. Some have had some real wonky results (assume bad offshore manf).

If you already have a cam over press, then definitely figure out how to NOT use that feature. And when you are testing, look for any type of backlash... movement under pressure and that has to include how the die is mounted. If there is any 'give' in a press, getting consistent sizing will be a PITA.

Why simple usually is easier to set up.

Jerry
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Just getting into the reloading end of things myself and have already bought the RCBS Rebel, Ill try sizing without camover and see how that goes. You referred to testing to measure backlash and such. Could you give more detail on how to measure the backlash and also other tests that would verify if the press is up to the task?

Nathan
 
I will see what the results are next visit to the range. I purchased a die adjustment indexed ring from Munkey1973 and used it over the past two days. I also watched the E.Cortina video on how he measures for shoulder bump. So I took the annealed brass twice fired in the Savage, then measured using the Hornady Comparator gauge and with case still in set to zero. After initial die setup using a nickel, it took a few attempts to adjust the index ring to -0.001 setting but it became repeatable mostly with several of the measurements reading at -0.002. I FL sized the brass and loaded in the Savage, bolt closed nicely, no stress to close it. Did this to 20 rounds, then primed, loaded with powder as per my initial success at the range and installed the bullets to the same length. All the rounds again fit nicely.

Just snowed here but warming up, and if it gets a bit nicer I will be out to the range to test out these rounds and will post the results.
 
Demonical said:
I realize whenever I read these type threads that I don't understand what you guys are talking about.

I resize, decap, clean, reprime cases.

Measure powder, dump powder into the case, insert appropriate bullet, seat it to arbitrary usually factory standard length.

Get acceptable hunting accuracy then go hunting.
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Yeah, I keep it simple too. All this talk about 1 or 2 thou shoulder bump, just neck size, same end result.
I think your average guy reads too much into what "professional competition shooters" do and go down a rabbit hole. If a guy can get 1/2" groups neck sizing (like me) what am I going to shave off that going down the shoulder bump road...1/10", maybe worse results? I just don't see the point.
As for chambering issues neck sizing, I've yet to run into that. Yes, eventually the brass gets a little long in the shoulder neck sizing, usually around 6-7 loadings, still chamber fine but you can feel a little resistance, that's when the batch gets a FL size, then back to neck sizing for another 6-7 loads, usually by then the primer pockets are pooched and it's time to toss the brass.
12-14 loadings that brass doesn't owe me anything.
 
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