Win vrs CCI Primers ???

K

Kevin R

New member
Hello,

I have a load made up that works good for my 223. 26.0gr of H4895, 55gr Nosler Ballistic Tip and Win SR primer.

When I try the CCI primer my velocity's go up 35-38fps average. This might be a dumb question but, does that also mean my preasure's are going up as well? My primers all look good with no sign of high presure.

The accuracy is very close to the same with Winchester being slightly better, I am quite happy with the performance of the Winchester primers, but they are way harder to find around here then the CCI primers??

All so, would the CCI magnum primers maybe be of any advantage for me??

Does deburring the flash hole help??

Thanks.

Kevin.
 
If your .223 is not an AR-15, there isn't any real advantage to using CCI VS WSR primers. There will be loads that may be better with one or the other as you will find.

If fps goes up, it's almost a given the pressure goes up. It's not likely a safety issue, if your within published max loads, and you see no other extreme pressure signs.

The magnum primers may be better for igniting some ball powders. The loading data will likely tell you when they are needed. Try some of the benchrest primers like the CCI-BR-4. They have worked the best for me on several loads.

I debur the flash holes as part of my uniforming of the brass. I doubt I could prove it made much difference. Some cases have some ugly burrs from punching the flash hole and it makes them all consistant. The tool is cheap, and can be used in a cordless drill to quickly go though a bunch of brass.
 
While I prefer the magnum primers in an AR due to the potential for 'slam fires', I've found that from an accuracy stand point, the "regular" and magnum primers may make a difference depending on the powder used...

I used to use Winchester-748 powder for my .204s and .223s and found better results using magnum primers, whether in my ARs or bolt actions...

I recently switched to a couple of Ramshot powders (close burn rates to the W-748) and found that standard primers work well with them, with the same bullet weights that I was using before...

While there may be a slight velocity/pressure difference as a result of the different primers, I doubt that it would be enough to cause concern...based on the reported fps in your post..
 
I have found the winchester primers to be very good and the CCI BR primers to slower over my crono than the win primers and also had more SD than winchesters, so why spend more for less???
 
You can use cci 400's for a bolt gun and 450's for a bolt or an ar15. The
cups are a little thicker on the 450's is all. I ran 400's though my ar with
no slam fire problems so it is not absolute. Your pressures are a bit higher
but no signs, no worries. The cci bench rest primers are more money and
primers seem to be the least of my worries in developing an accurate load.
I do work up loads with magnum primers when my case fill volume is lower than 90%. Some load books denote when magnum primers are used in a
non magnum loading.
 
Originally Posted By: Kevin R

When I try the CCI primer my velocity's go up 35-38fps average. This might be a dumb question but, does that also mean my preasure's are going up as well? My primers all look good with no sign of high presure.

More than likely but you should be ok with the pressures

Originally Posted By: Kevin R The accuracy is very close to the same with Winchester being slightly better, I am quite happy with the performance of the Winchester primers, but they are way harder to find around here then the CCI primers??

I use winchester in my bolt guns and CCI in my AR/semi's

Originally Posted By: Kevin R All so, would the CCI magnum primers maybe be of any advantage for me??

Some use them but I only tend to use them on a few rounds loaded for very cold conditions


Originally Posted By: Kevin R Does deburring the flash hole help??

I look at them when I first get them and if they need it then I do it and then never again.....but thats just me
 
Last edited:
Originally Posted By: Kevin RHello,

I have a load made up that works good for my 223. 26.0gr of H4895, 55gr Nosler Ballistic Tip and Win SR primer.

When I try the CCI primer my velocity's go up 35-38fps average. This might be a dumb question but, does that also mean my preasure's are going up as well? My primers all look good with no sign of high presure.

The accuracy is very close to the same with Winchester being slightly better, I am quite happy with the performance of the Winchester primers, but they are way harder to find around here then the CCI primers??

All so, would the CCI magnum primers maybe be of any advantage for me??

Does deburring the flash hole help??

Thanks.

Kevin.

Your load with the Win primers is very close to a load that shoots EXTREMELY well in two rifles I have in 223, only I use the 50 gn NBT as opposed to the 55 grainer you're using. 26.0 gns of H-4895 with the Win SR priomer will delivers less than 1/2" groups at 100 yards. I tried the same load with Federal 205M's and no dice. It wouldn't shoot at all. The Win primers were to key for accuracy in my two rifles.
I'd go with the most accurate load. The slight increase in velocity with the CCI primers is buried down in the noise level.
 
35-38 fps difference? What is the extreame spread of each? Could be you got more constent velocity with one over the other but their extreame spreads overlap. That difference is velocities would not impress me one way or the other. Which is most accurate?
 

I really like WSR primers and they came very highly recommended to me by the ballisticians at Winchester. I am pretty-much an insider, so the guys would not BS me.

Previously, I used Remington 7 1/2s to complete satisfaction.

All in all, I've been more satisfied with the Winchester WSR primers in the .223 Remington and the .223 Ackley.

How many Winchesters have I shot? Goodness only knows; maybe 200,000. Hard to know, but enough for a good sample.

I have NEVER had a single misfire with a Winchester WSR primer. Not one. Likewise, I've never had a misfire with the Remington 7 1/2s. That is waaaaay than I can say for the competition (whose name will go unmentioned)

Steve Timm
 


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