can someone tell me the difference between bench rest primers and regular primers,i load 22/250 loads for my encore pistol with cci 250 large rifle magnum primers and they work just fine but im curious as what the difference is. thanks for any input
Posts: 262 | Location: pa | Registered: 09 June 2002
I wouldn't use magnum primers in a .22-250 if you are looking for accuracy! Standard primers will burn more uniform. Benchrest primers will be a little better than standard, but with the encore you probably won't see any difference. Good Luck!
RELOAD IF WHAT YOUR SAYING IS I CAN GET MORE ACCURACY FROM STANDARD PRIMERS SOUNDS GOOD IM JUST GOING BY WHAT THE BOOK SAYS,WHAT PRIMER WOULD YOU USE.MY ENCORE SHOOTS PRETTY GOOD GROUPS WITH A 64 GRAIN BULLET WITH 32 GRAINS OF 748 POWDER AND CCI 250 MAGNUM PRIMERS,ON A GOOD DAY I CAN COVER A 3 SHOT GROUP WITH A QUARTER.WHEN I FIRST GOT IT I COULDNT FIND ANY LOAD DATA SO I CONTACTED T/C THEY TOLD ME TO CONTACT HODGEN,THEY SAID USE H380 POWDER WITH 250 MAG PRIMERS.AFTER TRYING THAT LOAD I HAD WORSE ACCURACEY THAN I DID WITH FACTORY AMMO SO I STARTED TINKERING AND FOUND THAT THE 748 WORKED BEST.BUT I GUESS NOW I HAVE SOMETHING ELESE TO TRY,IF I CAN GET A BETTER GROUP WITH STANDARD PRIMERS WOULD BE GREAT.
Posts: 262 | Location: pa | Registered: 09 June 2002
Because of the density of ball powders I always use magnum primers with them regardless of the size of the case. Many reloading manuals do recommend this. I prefer it.
Posts: 1261 | Location: Placerville, CA, US of A | Registered: 07 January 2001
quote:Originally posted by ricciardelli: "Benchrest" and "Match" primers generally have the same burning characteristics as "magnum" primers.
I have to disagree, here. Most Benchrest and Match primers are simply selected from standard primer production runs (depending on label). When a batch tests out to be very consistent the whole batch is taken as "match grade."
You can get Match primers in Standard or Magnum,as desired.
The only loading manuel I've seen that recommends magnum primers with standard cases and ball powder is Speer's. And that is because they use CCI 200's and CCI 250's. I've found CCI 200's with some ball powders, don't shoot well. Switching, upon the advice of a Sierra tech rep., to Winchester, or Federal, standard rifle primers eliminated the accuracy problems I had from poor ignition. Benchrest primers are standard primers with tighter QC as mentioned unless labeled otherwise. Mil-Spec primers for semi-auto rifles are, often, magnum primers that have less sensitive primer cups. E
Posts: 1022 | Location: Placerville,CA,USA | Registered: 28 May 2002
