Primers CCI vs Winchester

[ole farmerbuck]

I talked to a guy from Nosler yesterday about loading their 52gr BTHP 22cal bullets. He said to use magnum primers with H380 if using CCI primers and regular primers with Winchester. Anyone ever heard of that? Now for a question. Why are the necks getting so much burnt powder on my 22-250? I'm using 38 gr of H380.

 

[Grumulkin]

There is a myth that you have to use magnum primers with ball powders and what I suspect to be another myth that Winchester primers are hotter than other primers. I say, use any primer you want to and, if you don't get the accuracy results you desire, try another primer. You don't need a magnum primer with any type of powder in a 22-250 but sometimes there will be an accuracy advantage in doing so. In particular, I use the CCI 250 large rifle magnum primer in loads that don't even use ball powders just because the accuracy is better.

 

[The Bushmaster]

Winchester primers ARE just a tad hotter then CCI. In most cases I get a nominal 20 to 25 fps faster in handguns using Winchester primers and some indication that they might be a little hotter in rifle.

Remington seem to be on a par with CCI. Federal seem to be somewhere between CCI and Winchester. Federals are easier to set off because of softer cups and are favored by those who have lightened the hammer springs...CCI seem to have the hardest cup and require untampered with hammer springs in good condition.

That's why Grumulkin is seeing different degrees of accuracy in his rounds by shifting primers.

 

[Grumulkin]

That's why Grumulkin is seeing different degrees of accuracy in his rounds by shifting primers.

Pray tell, how is that so? Are you saying that the ONLY way different degrees of accuracy are obtained with different primers is because of their hardness? It would seem to me that touching a primer off is like being pregnant; it goes or it doesn't; she either is or she isn't.

 

[The Bushmaster]

No Grouchy...Formulation of the priming compound by the producer...

My...We are touchy this morning...

 

[ole farmerbuck]

And the necks on my 22-250 brass? Why so much black stuff on them?

 

[Randy1911]

And the necks on my 22-250 brass? Why so much black stuff on them?

Usually when you get powder burns on the outside of the case it means that you are not getting enough pressuse to seal the case in chamber. That allows powder gases to come back and burn the outside of the case.

The reson you can use Winchester primers in regular or magnum loads is written on the box. It says "for STANDARD or MAGNUM loads. So I guess they are a little hotter.

 

[ole farmerbuck]

I dont think my winchester primers shows regular OR magnum. I know they make large rifle magnum. I think the large pistol primers say regular or magnum. could be wrong though.

 

[ArchAngelCD]

Randy1911 and ole farmerbuck, you are both right and both wrong.

Winchester is a little weird with their primers!!
Their Large Rifle primers come in standard and Magnum.
Their Small Pistol primers come in standard and Magnum.
BUT....
Their Small Rifle and Large Pistol primers come in only one flavor and are marked for Standard and Magnum use.

Very strange if you ask me...

 

[The Bushmaster]

Economics ArchAngelCD. Economics...

Could it be the powder used in the particular calibers?