CCI primers

[spudgun]

I posted some time back regarding the CCI 300 SRP and piercing the primers. The piercing was not caused by over pressures but due to some slop in the firing pin hole. I was advised by several members that the CCI 300 primers have very thin metal and piercing is common on some guns and shuld be avoided. I did try Winchester primers and they held good also used some CCI 450 primers and had no issues. Now I need to reload and no one has 450 primers in stock. I did find some CCI #41 primers. Box states that these are for 5.56mm military primers. I have read in the past that these primers have thicker metal and piercing should not be a issue. I am using these for my 6.5 Creed. Think they will work?

 

[JMayo]

I'd call blue collar. They don't post powders or primers on their web site.

 

[Larryh128]

I posted some time back regarding the CCI 300 SRP and piercing the primers. The piercing was not caused by over pressures but due to some slop in the firing pin hole. I was advised by several members that the CCI 300 primers have very thin metal and piercing is common on some guns and shuld be avoided. I did try Winchester primers and they held good also used some CCI 450 primers and had no issues. Now I need to reload and no one has 450 primers in stock. I did find some CCI #41 primers. Box states that these are for 5.56mm military primers. I have read in the past that these primers have thicker metal and piercing should not be a issue. I am using these for my 6.5 Creed. Think they will work?

So you're using small primer creedmoor brass? If so then yes the #41 will work fine.

 

[BenPerfected]

Both Midway and Brownells has CCI 450 primers in stock.

 

[Rsadams]

Just a question.... It's happened to me using S&B small pistol... Happened today again.... When seating the primers are you seating them to hard IE literally crushing them..? The S&B are soft and hard to seat BUT when I could get them they were cheap... I found it easy to flatten them with an rcbs hand primer and even easier with a Dillon 550... I know the charges are not even close to max but out of a Glock with a large firing pin hole and crazy firing pin it will knock a hole in them if I crush them... It has never done it with CCI , Winchester or Federal primers.... Those seat easy and are of course thicker but if you crush them you can get pierced primers...

 

[newbieshooter]

Powder valley has a bunch of 450s. There’s also a 20% rebate on CCI primers thru 10/31/19 (if you spend at least $100).

https://www.powdervalleyinc.com/product/cci-450-small-rifle-mag-primers-1000/

Rebate info: https://www.powdervalleyinc.com/manufacture-rebate/reloading-rewards-cci/

 

[46and2]

Powder valley has a bunch of 450s. There’s also a 20% rebate on CCI primers thru 10/31/19 (if you spend at least $100).

https://www.powdervalleyinc.com/product/cci-450-small-rifle-mag-primers-1000/

Rebate info: https://www.powdervalleyinc.com/manufacture-rebate/reloading-rewards-cci/

View attachment 1123670

The rebate is probably why the OP is having trouble finding CCI primers.

I bought $500 worth of BR4, 250, 200, and BR4 primers. All were on sale AND free Hazmat AND bought enough to get back the full $100 rebate.
Bought from Natchez and Midsouth.

 

[spudgun]

So you're using small primer creedmoor brass? If so then yes the #41 will work fine.

Yes, Starline small primer brass. Thanks.

 

[AJC]

The 41s are a good choice for that starline brass in the cold I guess. Watched a cool video where they were testing SRP in 20 and below temperatures and the 41 had no failures. You may find the 6.5 videos on jonnys reloading bench useful. I enjoy his real world testing not just opinion.

 

[Lone Hunter]

I posted some time back regarding the CCI 300 SRP and piercing the primers. The piercing was not caused by over pressures but due to some slop in the firing pin hole. I was advised by several members that the CCI 300 primers have very thin metal and piercing is common on some guns and shuld be avoided. I did try Winchester primers and they held good also used some CCI 450 primers and had no issues. Now I need to reload and no one has 450 primers in stock. I did find some CCI #41 primers. Box states that these are for 5.56mm military primers. I have read in the past that these primers have thicker metal and piercing should not be a issue. I am using these for my 6.5 Creed. Think they will work?

Spudgun, Did you mean CCI 400 SRP? 300's are Large pistol..

 

[spudgun]

Spudgun, Did you mean CCI 400 SRP? 300's are Large pistol..

 

[spudgun]

Duhh, yes a typeo. CCI 400.

 

[spudgun]

Good news for me. Loaded up 10 rounds using the #41, went to the range and the different primer did not effect my groups. I had some worry about maybe the different primer would effect my burn rate and groups. Still .75 MOA at 600 yds. and no piercing the primers.

Thanks guys for your support.

 

[Larryh128]

Good news for me. Loaded up 10 rounds using the #41, went to the range and the different primer did not effect my groups. I had some worry about maybe the different primer would effect my burn rate and groups. Still .75 MOA at 600 yds. and no piercing the primers.

Thanks guys for your support.

I believe the 41 and 450 will have the same compound just a difference in the anvil.

 

[spudgun]

You may be right. I was a happy camper when the groups didn't change...