Primmer to hot?


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gunrac
July 30, 2009, 11:55 AM
After running out of the RS powder, I decided to try a bottle of SELECT. I lost my group, bigtime! Short on time, losing daylight, I had still had plenty of time for around 8 loads with plenty of cool down, and swabing time between shots.

What I did notice was considerably more smoke also a lot of powder was smoldering on the ground in front of me out to around 14'. I was using a Fed. 209A, and 85gn. powder, 240 hp/xtp and a Harvester green ribbed sabot. Avg. 1640fps. I also tried 80 and 90gr. Still sporadic. I also noticed my sabots were taken a beaten. Torn and missing peddles. I never had that with the straight RS.

After thinking about it, I was hitting my usual forum's checking out primmer threads. I'm thinking the Fed. primmer is just to hot for the Select. The only plus I had was it did seem to foul a little less.

I came accross a site on testing the strength of a primmer. I was able to come up with 2 other primmers I had. Win. and Cheddite. It turns out the Cheddite was the weakest. Hoping to get out today an try each of them to see if it will make a difference.

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gunrac
July 30, 2009, 02:48 PM
I couldn't take it. I put playtime before work. The Cheddite worked wonders. Didn't see the need to fool with the Win. The sabots were all intact and broke down in uniform shape. I even gained a few more F.P.S. Grouped over all at 1.284 As you can see in the pic, the gun works, it's the operater that can't get the P.O.I. down. :D

scrat
July 30, 2009, 05:57 PM
for sure i would say to hot and maybe too much heavy of a load. here is the problem. It has been proven 1 that the force of a 209 primer on its own is enough to send the bullet half way down the barrel depending on its length. Thats why 209 Muzzleloading primers were made up. They are designed to give enough of an ignition to ignite the powder making the powder burn to propel the bullet. With high powered 209 primers some of the powder will leave the barrel before it is burned. This will cause your accuracy to suffer as well as total performance. Now in comparing primers Federal 209 primers are some of the hottest primers out there. Those primers would work good on pellots but not that good on loose powder. I would stick to regular primers, Winchester or cci and your performance will be right where it needs to be.

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