Those who sort primers by weight...

[wkdickinson]

I just did a study of 952 CCI 450 primers. I weighed in grains on an A&D FX120i scale. I was amazed at how "normally" distributed they were. Now the real question is - does it matter?

 

[JFrank]

To sort the weight of primers, might be the biggest waste of time in accurate reloading.

Hardly a waist of time for those interested in taking their program to the next level , takes me about fifteen minutes to sort a sleeve, as @ mulligan points out, he’s seen 25 fps variation which is considerable difference in point of bullet impact on a long range target.
I use the gram mode also.

 

[mgunderson]

I see 10 to 15 fps average change from switching primer brands in multiple calibers. Special situation and discipline that requires that level of ocd. The wind is likely a bigger influence than the primer distribution.

Purely opinion, I believe there are shooters out that can shoot the difference, but that is a rare exception.

 

[Evan]

I just did a study of 952 CCI 450 primers. I weighed in grains on an A&D FX120i scale. I was amazed at how "normally" distributed they were. Now the real question is - does it matter?

View attachment 1731857

I see the same distributions when I sort. Everyone can determine for themselves if it matters.

I weight sort primers. I seat them by feel. I do not clean primer pockets or uniform them anymore. I sort bullets. I run no-turn necks. All determined by testing over long periods of time; not because someone told me I have to but because I proved it to myself A-B testing with season-long aggs.

 

[ShtrRdy]

Then there is the question of "does primer seating depth make a difference"?

 

[Larry Koch]

Just buy good primers, and seat them consistently. Do you think Tony Boyer weighted primers? no way he learned to read the wind.

 

[ELR LVR]

Just think,if you use CCI BR primers you can index them using the little B !

Theres a thread I havent seen much on yet
"Indexing"

 

[JEFFPPC]

Then there is the question of "does primer seating depth make a difference"?

Depends on one's level of reloading and skills at the bench.

 

[Doom]

I just did a study of 952 CCI 450 primers. I weighed in grains on an A&D FX120i scale. I was amazed at how "normally" distributed they were. Now the real question is - does it matter?

View attachment 1731857

Why do you find. this surprising?

 

[Woollybugger]

I see the same distributions when I sort. Everyone can determine for themselves if it matters.

I weight sort primers. I seat them by feel. I do not clean primer pockets or uniform them anymore. I sort bullets. I run no-turn necks. All determined by testing over long periods of time; not because someone told me I have to but because I proved it to myself A-B testing with season-long aggs.

Interesting, I could be talked into weighing primers if it makes as much a difference as a noturn vs a tight neck……. I’m betting at long range that vertical is the difference. how far?

 

[Larry Koch]

for competition there are two primers br-4. br-2. And Federal
Consistent primer seating depth is important.

 

[kelbro]

I think that I will just look for gross outliers. I'm not sure that I can shoot well enough to see any benefit.

I do have plenty of time since retiring so this was not a big deal.

Next step is to try some of the lightest vs the heaviest and see if there's a difference on the chrono. Of course, the case capacities, bullets, and powder charges would have to be identical for the test results to be valid

 

[wkdickinson]

Why do you find. this surprising?

Because most things I check in this sport have significant "outliers" on one end or both.

 

[Mulligan]

Because most things I check in this sport have significant "outliers" on one end or both.

yep,
back when I was recovering from a surgery, I had time to sort a case of primers over a few days time.
When you sort a box of 5000, you get a feel for what the ragged edges actually look like.

CW

 

[Retired shooter]

yep,
back when I was recovering from a surgery, I had time to sort a case of primers over a few days time.
When you sort a box of 5000, you get a feel for what the ragged edges actually look like.

CW

Would some of you " R S G s" . Real smart guys please help out an old dude with post # 6 that I made an edit on. As I stated another unexplored rabbit hole. & additionaly won't end up in a nest of snakes.

Thanks & Have Fabulous Friday.!

 

[60723]

This is what I would do; sort
3.61-3.63
3.64-3.66
3.67-3.69
Sort several hundred and shoot them in batches. If you sort 500, you would probably have 300 in the middle batch. Any outliers use for foulers.

 

[Bottom Fodder]

I guess I could sort primer while I’m watching CNN

 

[Retired shooter]

I understand that, however is there anything on the tube worth watching.

Have a great day.

 

[quest450]

I sort in .001 grams for 600 and 1K compensation and I don’t think that hi/lo weight matters as long as you shoot the same weight primers and eliminate the outliers

 

[Retired shooter]

I sort in .001 grams for 600 and 1K compensation and I don’t think that hi/lo weight matters as long as you shoot the same weight primers and eliminate the outliers

View attachment 1732199

Thank you Sir.
Now what about1760 yards and beyond with small caliber, for that purpose .

Have a great day.