Primer Question

jkmo

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I mistakenly picked up 1000 Winchester large pistol primers instead of the of the CCI large pistol primers I've been using for 4.7 gr of Bullseye with a 200 gr RNFP lead bullet. Should I return the Winchesters and get CCI or will it not make any difference.

Any difference between these primers? Have never used the Winchesters

Thanks
 
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Hi Jkmo,
I'd use them. I like the Winchesters better but have both on hand.
What ever minuscule difference there might be in the two primers won't be noticeable with your load of 4.7 Bulls eye.
Save yourself the trip.
Good luck
Mike
 
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I mistakenly picked up 1000 Winchester large pistol primers instead of the of the CCI large pistol primers I've been using for 4.7 gr of Bullseye with a 200 gr RNFP lead bullet. Should I return the Winchesters and get CCI or will it not make any difference.

Any difference between these primers? Have never used the Winchesters

Thanks

You forgot to mention the caliber you're reloading!
Winchester is warmer than the CCI but if its a 44 spl. it should be no problem. If its 45 ACP the charge looks warm to me without getting out a manual. If so, I'd be setting the OAL on the long side.
Need a bit more info here.
 
I loaded some up for my 44 mag with 18.5 grains of AA 9 and a 240 cast swc. Chrono showed the CCI and Win. primers were putting out the same velocities. So, the difference is miniscule at best. If you are at the max powder charge, you may want to back off a bit at first, just to be on the ultra safe side. In my application, the difference in primers didn't make a difference.

Edit: around here, you aren't allowed to return primers. So that may not be an option.
 
Winchester primers are rated for both standard and magnum applications so they are a little hotter than the CCI LP primers. As with any change in components, drop the powder charge back slightly and work your way back up.
 
Without looking it up, I think the load is at the top end of the chart for bullet and powder in the 45acp.
I'd do as suggested above and back off a bit and work back up.
SOP for change of components especially when dealing with a max load.

Even if they were to show the same velocity (if tested), it wouldn't necessarily indicate the same breech pressures.
 
Your load is rather mild. Lyman's Pistol manual shows 5.0 grs Bullseye
with a 200 gr SWC or 225 gr RN at moderate pressure. Use your Win.
primers and don't worry. I prefer Win. over CCI because the CCIs are
hard to seat.
 
I don't fine CCI primers hard to seat. Now if you're talking about S&B brass, that's another whole thread ! LOL

Well Arch I guess I should have been a little more clear in what I wrote because in some cases I don't find CCIs hard to seat at all because they won't seat. I have some Rem. 45 AR
brass that will readily accept Rem. 2 1/2 primers but will not
accept CCI 300s period. I guess they're just being loyal to
their brand. To those that like CCI primers; i'm happy for you
but i'm tired of fighting them and don't plan to buy any more.
 
Well Arch I guess I should have been a little more clear in what I wrote because in some cases I don't find CCIs hard to seat at all because they won't seat. I have some Rem. 45 AR
brass that will readily accept Rem. 2 1/2 primers but will not
accept CCI 300s period. I guess they're just being loyal to
their brand. To those that like CCI primers; i'm happy for you
but i'm tired of fighting them and don't plan to buy any more.

I have noticed the same thing but until now didnt put the pieces together. I just thought I wasnt getting the primer pocket prepped well enough...LOL
 
I 've loaded 4500 -5000 rds of with 4.7 to 5 gr of Bullseye in the last year and a half. Can't say CCI are hard to seat (Dillon 550B) but have never loaded Win
 
Been at the re-loading game now for 33 years and I have used just about all of the primer brands available. I can honestly say I have had no problems with any of them. About the ONLY thing I can say negatively about the Winchester Brand is the fact that years ago they cheaped out and stopped Nickel Plating them to save a few pennies. There is no difference in performance, I just like the way Nickel primers look. That said, I'll usually buy what I can get the best deal on. Most of the time Federal primers are the least expensive, but weather you use Remington, CCI, Winchester, Federal, Magtech, etc. won't make a difference IMHO. I say buy what's on sale.......

Chief38
 
I have always found CCI to be a bit more difficult to seat and ignite. The last bunch of small pistol primers I bought, I could hardly seat and used much more force than I thought reasonable. I don't buy them any more. I buy Winchester and Federal primers exclusively now. Never found a difference and have used primers interchangeably for all reloading. But, none of my loads are max. Certainly if you are using max loads, back off when changing a component.
 
Primers.

I had always used CCI`s but had to buy 1,000 Winny`s large due to a shortage here. Surprise..The Winny`s were a bit easier to seat. And as I hand prime I did notice the difference so now all I use are the Winny`s. Hope this helps.
 
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