Has anybody noticed a measureable difference between match and magnum rifle primer performance , in terms of velocity and accuracy , particularly in .300 Win Mag ?
- Thread starter dragoon
- Start date
Re: Match and Magnum rifle primers - any difference ?
Hm..
Someone once did a test taking pictures of primers going off..
They had a whole bunch of pictures compared right as the primer was at max ignition.
I think it was German Salazar but I'm not 100% sure. Someone might be able to finish this thought for me.
Again, if my memory serves me correctly the russian primers had the biggest flame.
Hm..
Someone once did a test taking pictures of primers going off..
They had a whole bunch of pictures compared right as the primer was at max ignition.
I think it was German Salazar but I'm not 100% sure. Someone might be able to finish this thought for me.
Again, if my memory serves me correctly the russian primers had the biggest flame.
Re: Match and Magnum rifle primers - any difference ?
I wouldn't use a non magnum primer in a .300WM.
I wouldn't use a non magnum primer in a .300WM.
Re: Match and Magnum rifle primers - any difference ?
I think a better question would be is there any different between the regular Magnum Large Rifle primer and the Match Magnum Large Rifle primer?
I think a better question would be is there any different between the regular Magnum Large Rifle primer and the Match Magnum Large Rifle primer?
Re: Match and Magnum rifle primers - any difference ?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: CanPopper</div><div class="ubbcode-body">I think a better question would be is there any different between the regular Magnum Large Rifle primer and the Match Magnum Large Rifle primer? </div></div>
+1 on this, I hope your not using match, large rifle primers on your 300 win mag otherwise you may have a lot of unburned powder coming out of your barrel. You need magnum primers.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: CanPopper</div><div class="ubbcode-body">I think a better question would be is there any different between the regular Magnum Large Rifle primer and the Match Magnum Large Rifle primer? </div></div>
+1 on this, I hope your not using match, large rifle primers on your 300 win mag otherwise you may have a lot of unburned powder coming out of your barrel. You need magnum primers.
Re: Match and Magnum rifle primers - any difference ?
match primers make a lesser flash than standard (the less influence of the primer on pressure increases consistency) magnum makes a greater flash so magnum match is ? possibly more effort for consistency or just batches that test better
match primers make a lesser flash than standard (the less influence of the primer on pressure increases consistency) magnum makes a greater flash so magnum match is ? possibly more effort for consistency or just batches that test better
Re: Match and Magnum rifle primers - any difference ?
The consensus seems to be that match primers don't make a difference for most people out there.
The consensus seems to be that match primers don't make a difference for most people out there.
Re: Match and Magnum rifle primers - any difference ?
I don't have any proof but the consensus is that match primers have a more consistent burn than regular. I am using match magnum for my .338 lapua instead of regular magnum primers. Just harder to find right now.
I don't have any proof but the consensus is that match primers have a more consistent burn than regular. I am using match magnum for my .338 lapua instead of regular magnum primers. Just harder to find right now.
Re: Match and Magnum rifle primers - any difference ?
German Salazar has an article on primers (PALMA and long range 308 match shooting mainly). In that article, he states that the weakest primer is the one you want because it leads to the least variance in MV; that is small ES and SD numbers.
German Salazar has an article on primers (PALMA and long range 308 match shooting mainly). In that article, he states that the weakest primer is the one you want because it leads to the least variance in MV; that is small ES and SD numbers.
Re: Match and Magnum rifle primers - any difference ?
http://riflemansjournal.blogspot.com/2009/06/primers-large-rifle-primer-study.html
This is what you are looking for I believe.
http://riflemansjournal.blogspot.com/2009/06/primers-large-rifle-primer-study.html
This is what you are looking for I believe.
Re: Match and Magnum rifle primers - any difference ?
here is my opinion. i use match primers in some of my guns for peice of mind. i want to know ive done everything in my power to make my ammo as accurate as i can when i pull the trigger. i doubt they make a diffrence in real world.
here is my opinion. i use match primers in some of my guns for peice of mind. i want to know ive done everything in my power to make my ammo as accurate as i can when i pull the trigger. i doubt they make a diffrence in real world.
Re: Match and Magnum rifle primers - any difference ?
My targets and chronograph tell me there is no difference in 210/210m and cci200/BR2, but my wallet feels lighter when I buy match primers, I'm sure magnum primers are the same.
My targets and chronograph tell me there is no difference in 210/210m and cci200/BR2, but my wallet feels lighter when I buy match primers, I'm sure magnum primers are the same.
Re: Match and Magnum rifle primers - any difference ?
I have used magnum, standard and match clear up to the 7RUM case.
Once I work up a load I start switching primers. Some times a match makes the best groups and sometimes it does not. I have never noticed a big difference in velocity. For me a match primer is noting more than another option to try to imporve the group.
I have used magnum, standard and match clear up to the 7RUM case.
Once I work up a load I start switching primers. Some times a match makes the best groups and sometimes it does not. I have never noticed a big difference in velocity. For me a match primer is noting more than another option to try to imporve the group.
Re: Match and Magnum rifle primers - any difference ?
Here's my approach.
I develop my loads using standard primers. When I'm all done, I test with match primers, to see if they actually make a difference. Very often, if I've done my load development successfully, they make so little difference that they tend not to be useful as anything but a reassurance factor.
Now, I may use them anyway, for that reassurance factor; when I'm being particularly anal about a specific event I'm loading for.
Whether they actually make a practical difference may be less important than the lift they give my confidence level.
Don't undersell the shooter's personal confidence. If you don't believe you can win, you probably can't, even with flawless tools. If you believe you're unbeatable, I personally think that's worth a few extra points. Maybe I can't prove it, but I see no harm in believing it.
Greg
Here's my approach.
I develop my loads using standard primers. When I'm all done, I test with match primers, to see if they actually make a difference. Very often, if I've done my load development successfully, they make so little difference that they tend not to be useful as anything but a reassurance factor.
Now, I may use them anyway, for that reassurance factor; when I'm being particularly anal about a specific event I'm loading for.
Whether they actually make a practical difference may be less important than the lift they give my confidence level.
Don't undersell the shooter's personal confidence. If you don't believe you can win, you probably can't, even with flawless tools. If you believe you're unbeatable, I personally think that's worth a few extra points. Maybe I can't prove it, but I see no harm in believing it.
Greg
Re: Match and Magnum rifle primers - any difference ?
In the Speer book it says the CCI match primers are made to the same spec as the standard ones. Just with more experienced people working the assembly line.
In the Speer book it says the CCI match primers are made to the same spec as the standard ones. Just with more experienced people working the assembly line.
Similar threads
