An apology - Speer was right after all!

[mugsie]

I just wanted to set the record straight. I had posted a while back about 223 loaded with 55g SP and H335. The Speer manual stated max 26g with small rifle magnum primers, whereas the Hodgdon site said standard small rifle primers. Hodgdon also said 24.3 (I'm doing this from memory) and Speer said 26 garins. I took the Hodgdon advice and at 24g was OK but moving slightly higher - 25g to 25.5g I was seeing severe over pressure signs to the point of blowing out primers. Well I contacted Speer and had a fairly long discussion with them explaining what I've said above. The fella I spoke with said they always recommend magnum primers with ball powders. I tried the CCI 450 primers and am now shooting quarter sized groups at 100 yards with 26g of H335 under a 55g bullet. No over pressure signs at all. Why this works I'll never know but it does and Speer was right after all!

I emailed them also telling them they were right too.

Whew - now I feel better.....

 

[caz223]

This isn't the first I heard of this.
I like 335, but I like lighter bullets, too.

 

[dmftoy1]

Hmmmm . . . .I might have to try some CCI 450's on my next batch.

 

[Ol` Joe]

I`ve used Remington 7 1/2s in my 223 for years with all powders. I`ve found they work better then the std Federals, Rem 6 1/2s or Win SR. I also have noticed most reloading manuals I have recommend them in their loads. They are listed in places as a BR type primer but I also have seen them claimed to be hotter then average.
Speer recommends a mag type primer for all ball powder loads and with any charge of powder over a certain size. They were also the originators of magnum primers, for use in Weatherby cartridges if I`m not mistaken. I can`t remember where I read this, but I`m sure I saw it in a magazine at some point in time.
Mugsie, I`m glad you got your load to come together...

 

[spencerhut]

What About CCI #41?

Are the CCI #41 (Supposedly Military .223 primers) a Magnum primer?

 

[Ol` Joe]

Are the CCI #41 (Supposedly Military .223 primers) a Magnum primer?

Speer claims they are, here`s what they say.

http://www.cci-ammunition.com/default.asp?menu=1&s1=3&pg=10&prod_id=30