Author Topic: Well I did my own testing with CCI Primers (Read 828 times)

Bullseye · « **on:** October 31, 2004, 05:01:01 PM »

I asked about this last week. I did some shooting with my Encore Friday to take my wife and her new Encore out of the equation.

Results.

CCI Primers - big group at 50 yards, about 4-5" (I did not measure because the group was not worth it).

Winchester Primers - 3 shots touching at 50 yards just like always.

My wife was shooting her Encore today with the Winchester primers. She had 4 shots touching at 50 yrds compared to last week when she was all over the target with the CCI's. With the CCI's the gun did not always lock up right and sometimes would not cock. Guess what, it never did that with the Winchesters.

Someone told me once to use any primer but CCI, guess I see why now.

Keith Lewis · « **Reply #1 on:** November 01, 2004, 04:15:02 AM »

Glad to see your post on the CCI primer experience. I have a brand new Traditions Pursuit LT rifle that I shot only once with Winchester primers and got some decent groups. I just went out this weekend and shot three different bullets with CCI primers and the best group was 3 inches at 50 yards. I never associated the difference with the primer change but am now very interesed in trying the Winchester primers again. I sure hope that is the answer as I was very unhappy with the latest results and somewhat confused as to what happened. What were the componentsyou were using ; powder, bullet (sabot?) etc.? Thanks. I was shooting 80gr. of the new Black Mag3 powder with 300gr. bullets in Harvester sabots. I also shot some 295gr. Powerbelts which were a little better. I am going out again this week with my T/C Omega and will try to duplicate test results.

Keith Lewis · « **Reply #2 on:** November 01, 2004, 06:27:25 AM »

Another thought; there is a lot of push to go to the CCI Primers due to the fact that they are supposed to be less powerful than the others (Federal being the most powerful). This is all due to the formation of the crud ring most notable with Triple Seven powder. If the variation in accuracy is actually due to the CCI primer and it duplicates in both of my rifles I suspect that there should be some definate interest in this information throughout the shooting sites. I just got information from a reliable source that there is a chemical in 209 primers which causes the formation of a crud ring with several powders. The source (which I will identify after they give me permission to use their data publically) did an ignition with an electrical source and did not experience the crud ring. Isn't that interesting?

Bullseye · « **Reply #3 on:** November 01, 2004, 12:03:03 PM »

That is very interesting about the electronic ignition source. I must admit the crud ring was better with the CCI, but a gun is not worth much without accuracy.

To whoever asked, my components were 80 Grs. of loose 777 FF with a Hornady 44 cal 240 gr XTP in the green sabot. This was the load shot in both guns.

My wife is the one I felt sorry for. One weekend she shoots a 2 to 2 1/2" group at 50 yards with open sights and Winchester primers. The next weekend she uses the CCI primers at my suggestion and is all over the place. At least now she is back on track and shot a group with 4 shots touching Sunday and is ready to deer hunt. I told her I thought it was a good time to try the CCI since she was still getting her group centered. I figured the CCI's might shoot to a different POI, but I never expected the large group.

RAY · « **Reply #4 on:** November 04, 2004, 09:34:12 AM »

I have shot CCI primers for 4 years, out of two different guns. I haven't experienced any problems with accuracy. I used to shoot a T/C Blackdiamond 50 cal., 2-50 grain Pyro. pellets,T/C sabot bullets(can't recall the weight)-2.5 in. groups at 100 yds. Now I shoot a T/C Encore .45 cal. I started with 3-50 grain Pyro. pellets, 225 grain CVA Powerbelt H.P.bullets, 2 in. groups at 100 yds last year. Last week I sighted in for this year, I dropped down to 2-50 grain Pyro. pellets, same 225 grain PB bullet (and get this) I shot a 1 inch group at 100yds. So, the CCI primer theory, for me at least, means nothing. I know you guys made mention of this, but there is an endless amount of variations between bullet and powder combinations(brands, weights, and sizes). But don't take this the wrong way, if I had a favorite bullet/powder combo and it shot better with one primer than the other I would do the same thing you are. Because my set-up is different, I'm comparing my oranges to your apples.

Keith Lewis · « **Reply #5 on:** November 04, 2004, 10:42:07 AM »

Good response. In our case there are three rifles that seem to not like CCI primers and they are all T/C so we are at least comparing different kind of oranges with your apples. I have not done enough shooting of the comparison to make a definate decision. I am going to shoot the .25ACP conversion this hunting season anyway and just came back from the range and am satisfied with the combination 80gr. Black Mag3, 348gr. Powerbelt without the plastic tip, Winchester rifle primer put five shots together almost in a 1X3 rectangle one and one half inch high at 50 yards. I shot some 295gr. powerbelts with the same powder charge and the three bullets were overlapping but I prefer heavier for Elk. Funny thing was the 348gr. bullets seem to be slightly higher on the target at the same distance than the 295gr. ones. Heavier bullet, more pressure, higher velocity?

wild willy · « **Reply #6 on:** November 04, 2004, 01:18:26 PM »

might be slower heavier bullet more time in barrel for recoil to affect it

Keith Lewis · « **Reply #7 on:** November 04, 2004, 04:50:47 PM »

I just thought the same thing while I was driving to Checker Auto to get stuff for my Elk towing Samurai. Heavier bullet more recoil so barrel lifts more than with lighter bullet for same charge.