primers??
09-08-2003 | 11:14 AM
#1
Thread Starter
Joined: Feb 2003
Posts: 496
Likes: 0
From: south western, wy USA
primers??
I recently switched primers from Winchester Magnum to CCI 250 LR Magnum Primers I have not shot all the old but have started loading the new.
My question is will the difference made between the 2 primers be signifigant or not and will i need to resight my rifle change loads etc.....
I plan on going out and shooting to make sure just trying to get an idea of what to expect
thanks in adv
My question is will the difference made between the 2 primers be signifigant or not and will i need to resight my rifle change loads etc.....
I plan on going out and shooting to make sure just trying to get an idea of what to expect
thanks in adv
09-08-2003 | 12:10 PM
#2
Nontypical Buck
Joined: Feb 2003
Posts: 3,393
Likes: 0
From: Western Nebraska
RE: primers??
I once changed to a magnum primer from a standard LR primer in a 6MM Rem case. I backed off the charge by 15% and worked back to the very same load I had developed with the LR primer. BTW accuracy increased!!!
In short I could see no signs whatever of increased pressures with a magnum primer over a LR primer......BE CAREFUL!!! that' s just one case.
If your loads currently are " hot" and you change anything at all I' d back off and redevelope your load. I' m betting there will be no difference observed in the loads. However if it was me shooting the rifle, I' d back off at least 10% and re do the load. You can' t be too careful!!
In short I could see no signs whatever of increased pressures with a magnum primer over a LR primer......BE CAREFUL!!! that' s just one case.
If your loads currently are " hot" and you change anything at all I' d back off and redevelope your load. I' m betting there will be no difference observed in the loads. However if it was me shooting the rifle, I' d back off at least 10% and re do the load. You can' t be too careful!!
09-08-2003 | 09:25 PM
#3
Typical Buck
Joined: May 2003
Posts: 920
Likes: 0
From:
RE: primers??
Vapodog replied as I would.............
ditto ditto ditto!........keepin it safe, AA
If your loads currently are " hot" and you change anything at all I' d back off and redevelope your load. I' m betting there will be no difference observed in the loads. However if it was me shooting the rifle, I' d back off at least 10% and re do the load. You can' t be too careful!!
