primer differences in 30-06

WhelanLad

WhelanLad

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fellas not sure if the component availability is an issue for you guys yet but here its drying up

quick question, any noticable difference between a Federal primer and a Winchester primer, both large rifle......... should be fairly right in that 150gr FN load to use an not worry too much about different poi?

ive interchanged Remington and Federal in my 375 BB to no difference..... wanted to ask the TechXperts here!

thanks
 
Older Winchester primers (white box nickel-plated that said For Standard or Magnum loads) were fairly hot, then CCI then Federal was the mildest. 25-75 fps difference in a number of different Lee Enfields. Accuracy was better in some rifles, worse in others. The ONLY load I use in any of my Lees is 42.0 gr. of RL15, with Hornady 174 gr RNSP, Sierra 180 gr. SP, 180 gr. Speer RN, 180 gr. Cam-pro.
 
time4t said:
Proper, safe handloading protocols stipulate that changing any components of a recipe requires a load redevelopment. Primers do differ- some are quite close, with minimal variance; others can get you into trouble really fast.
Click to expand...

copy that,
i feel because im under min charge with current load that i shold be fine, an accuracy shouldnt throw it way off.

i will of course test on paper when time comes,

good info above James, thanks
 
Use your googlefoo... there is lots of info on the net....with pictures.

I interchange primers for my "target" shooting loads.

I would not do that with hunting loads without checking accuracy.
 
Lots depends on the level you load and shoot at.

Can you change primers willy nilly on a low pressure hunting load? Maybe; maybe not. The NRA reported test results decades ago on the effects of component changing on the 30-06. They came up with some loads that varied as much as 10,000 CPU just by changing the primers. Sometimes the higher pressures came with higher velocities and sometimes they didn’t. They couldn’t count on tradititional pressure signs either. Not that it matters much; tests with peizoelectric transducer systems proved a long time ago that we basically suck at estimating pressure from pressure signs anyway.

You may see a big difference in accuracy, but just as likely won’t see anything at all. That presupposes that the equipment and shorter are capable of detecting small differences.

If I had a hunting load that went bang most of the time, and shot well enough to go hunting all of the time, and happened to run out of primers I’d likely swap for something similar and see what happens. If there were 100 cynical critics watching I might load 2 or 3 loads 1, 2 , 3 grains under and shoot one of each first. If nothing important falls of, try the old load witb the new primer. Something similar works if you have a bunch of ammo loaded for one rifle and want to use it in another. Load work up can be retro-active.
 
The results you see with different primers depends on powder as much as anything. A harder to ignite powder like ball powders showed more velocity change with different primers than H4895 and IMR4064.
 
People are beating this subject to death for very little reason. It's comparable to counting the hairs in a gnat's butt to see which one has better flight control.

For the average hand loader that is happy with 1.5 moa groups out to 300 meters component changes often don't make any difference to their happy mode.

For those of us that are a bit anal about accuracy, component lot batches can make a significant difference.

Bullets, cases, powders, primers are not created equal between lots. Truth be told, they're not always equal within the same lot for several reasons.

Most of these differences are not within our or the manufacturers ability to control, other than to keep them within specified plus or minus parameters of their median control figures.

The only REAL way to keep relatively consistent accuracy/velocity results is to purchase large quantities of the SAME LOT NUMBER components.

The folks that purchase 100 counts, primers/bullets and a single pound of powder at each purchase, have to start over with load development every time they replenish their stocks.

One way to get around this with powder, is to take several containers of the SAME MANUFACTURER and SAME DESIGNATION and blend them together. This will give you ONE LARGE LOT of powder with a consistent burn rate. YES, IT'S SAFE TO DO THIS as long as you aren't mixing different types of powder, such as mixing W748 with CF223. Mixing W748 with another lot of W748 IS SAFE.

Sadly, you can't do the same with bullets/cases/primers. Luckily with modern manufacturing techniques, bullets are now far more consistent from lot to lot than I've seen over fifty years of shooting.

Back in the 70s, four MOA groups were considered to be acceptable. Now, components are so good 2 MOA is the norm.
 
I don't find any "measurable" difference on full size rifle loads. In small cartridges like .223 there is a slight bit of difference in the groups.
 
bearhunter said:
People are beating this subject to death for very little reason. It's comparable to counting the hairs in a gnat's butt to see which one has better flight control.

For the average hand loader that is happy with 1.5 moa groups out to 300 meters component changes often don't make any difference to their happy mode.

For those of us that are a bit anal about accuracy, component lot batches can make a significant difference.

Bullets, cases, powders, primers are not created equal between lots. Truth be told, they're not always equal within the same lot for several reasons.

Most of these differences are not within our or the manufacturers ability to control, other than to keep them within specified plus or minus parameters of their median control figures.

The only REAL way to keep relatively consistent accuracy/velocity results is to purchase large quantities of the SAME LOT NUMBER components.

The folks that purchase 100 counts, primers/bullets and a single pound of powder at each purchase, have to start over with load development every time they replenish their stocks.

One way to get around this with powder, is to take several containers of the SAME MANUFACTURER and SAME DESIGNATION and blend them together. This will give you ONE LARGE LOT of powder with a consistent burn rate. YES, IT'S SAFE TO DO THIS as long as you aren't mixing different types of powder, such as mixing W748 with CF223. Mixing W748 with another lot of W748 IS SAFE.

Sadly, you can't do the same with bullets/cases/primers. Luckily with modern manufacturing techniques, bullets are now far more consistent from lot to lot than I've seen over fifty years of shooting.

Back in the 70s, four MOA groups were considered to be acceptable. Now, components are so good 2 MOA is the norm.
Click to expand...

Seems like you spent more effort beating the subject to death than anyone.
 
time4t said:
Proper, safe handloading protocols stipulate that changing any components of a recipe requires a load redevelopment. Primers do differ- some are quite close, with minimal variance; others can get you into trouble really fast.
Click to expand...

Yeah especially if you use large pistol magnum with a 9mm
 
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