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Q:
Large Rifle Primers vs. Large Rifle Magnum Primers? A knowledgeable gun shop owner told me Saturday that a standard Winchester Large Rifle primer or a Federal 210 Large rifle primer is fine with propellants like IMR 4350 or Reloder 19 in 7mm Remington or 7mm Weatherby magnum sized loads. He said the CCI standard primers were a little weak to substitute for the magnum LR primers. I noticed that Lee's Modern Reloading calls for standard LR primers in everything but the real big magnums. What say you from experience? I have not found anything to support or contradict that advice.
Question by WA Mtnhunter. Uploaded on November 23, 2009
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Answers (12)
I use Rem 9/12 mag primers in my 375 and for my 7WBY for 175 grain bullets, and use 215 with the 160s but I am going to switch to the Win primers in both mag and non mag because from what I hear they are just as good as the Fed. I wont use another CCI 250 primer had to many problems with them.
!!!!!!!!!!!!!!WARNING!!!!!!!!!!!!!!!!!
!!!!!!!! FOR BOLT GUNS ONLY!!!!!!!!!!!
Your knowledgeable gun shop owner is right!
CCI 200's are OK with the exception of propellants like Winchester 760 Ball Powder, "CLICK"BOOM"! Not good!!
I use Federal 215 Magnum for my IMR4831 and Winchester 760 loads in my 25-06 and 30-06 and 210 Federal for faster burning.
Using a Magnum primer is basically adding 3-5 grains to your load pending on case capacity. Through my own experiences I find I achieve higher velocities and lower pressures with IMR4831 with the 06's.
!!!!!!!!!!!!!!WARNING!!!!!!!!!!!!!!!!!
!!!!!!!! FOR BOLT GUNS ONLY!!!!!!!!!!!
In my experience with Winchester WLR primers I've found them to be quite acceptable for loads with 4831, 4350 and RE 19. They seem to be on par with the Fed 210.
I threw out the remaining 50 or so CCI 200 and Benchrest primers a year or so ago after some misfires. I did experience excessive pressure signs with the same loads with Fed GM215M primers that went away with WLRM and CCI 250 primers. I thought about working up some loads with WLR primers since I have a bunch of those and they are in good supply at my local shops and the WLRM's are not. I have enough of them to get by for a while, but I want to work up some loads that I can duplicate. I have plenty of RL19, RL22, and IMR 4350 on hand.
I use Fed 215 Mag primers out of my .30/06, but if you do use them, work your load up with them, don't start with a max load and slap one of them in there.
I won't be using any more Fed 215 in this load. They start showing excessive pressure just above starting loads.
MtnHunter I use the 215 in my 7mm Wby with a 160 Nosler and have'nt had a problem are you seeing sings of presure with the Barnes?
Yes, with the 150 gr. TTSX with less than max loads with RL 19, IMR 4350, and H4350. With WLRM and CCI 250 primers, sticky bolt and cratered primers went away with the same powder charges. Maybe it is just a pressure spike with the Gold Medal 215 Match primers. I have some Federal 215's that are not GM that I could try, but I think I have more WLRM on hand. I only have a few CCI 250 magnum primers but I used them just to validate if it was the primer or what. I'm going to work up some loads with the WLRM and WLR primers and see what works best.
Yes, with the 150 gr. TTSX with less than max loads with RL 19, IMR 4350, and H4350. With WLRM and CCI 250 primers, sticky bolt and cratered primers went away with the same powder charges. Maybe it is just a pressure spike with the Gold Medal 215 Match primers. I have some Federal 215's that are not GM that I could try, but I think I have more WLRM on hand. I only have a few CCI 250 magnum primers but I used them just to validate if it was the primer or what. I'm going to work up some loads with the WLRM and WLR primers and see what works best.
I use the Federal Magnum primers in anything that uses a large primer. I always work up from minimum loads. I rarely ever hit the max load because I stop adding powder when the groups start getting small. I own a chronograph but don't buy in to the "more velocity is always better" idea.
Theoretical ballistics are just that, theory; you can only hit what you can hit the instant you pull the trigger. I test everything out to 300 yards to see what it will really do as far as bullet drop, because until you actually test it in your rifle, you don't really know what it will do.
While I realize I don't need magnum primers for my 30-06 loads, I have a lot of Winchester Large Rifle Magnum Primers. Am I way off base using them with IMR4350 for my 30-06?
ps--I shoot 165 grain Sierra, Hornady and Barnes X bullets in that '06 I'm wondering about using WLRM primers in.
Post an Answer
I use Rem 9/12 mag primers in my 375 and for my 7WBY for 175 grain bullets, and use 215 with the 160s but I am going to switch to the Win primers in both mag and non mag because from what I hear they are just as good as the Fed. I wont use another CCI 250 primer had to many problems with them.
!!!!!!!!!!!!!!WARNING!!!!!!!!!!!!!!!!!
!!!!!!!! FOR BOLT GUNS ONLY!!!!!!!!!!!
Your knowledgeable gun shop owner is right!
CCI 200's are OK with the exception of propellants like Winchester 760 Ball Powder, "CLICK"BOOM"! Not good!!
I use Federal 215 Magnum for my IMR4831 and Winchester 760 loads in my 25-06 and 30-06 and 210 Federal for faster burning.
Using a Magnum primer is basically adding 3-5 grains to your load pending on case capacity. Through my own experiences I find I achieve higher velocities and lower pressures with IMR4831 with the 06's.
!!!!!!!!!!!!!!WARNING!!!!!!!!!!!!!!!!!
!!!!!!!! FOR BOLT GUNS ONLY!!!!!!!!!!!
In my experience with Winchester WLR primers I've found them to be quite acceptable for loads with 4831, 4350 and RE 19. They seem to be on par with the Fed 210.
I threw out the remaining 50 or so CCI 200 and Benchrest primers a year or so ago after some misfires. I did experience excessive pressure signs with the same loads with Fed GM215M primers that went away with WLRM and CCI 250 primers. I thought about working up some loads with WLR primers since I have a bunch of those and they are in good supply at my local shops and the WLRM's are not. I have enough of them to get by for a while, but I want to work up some loads that I can duplicate. I have plenty of RL19, RL22, and IMR 4350 on hand.
I use Fed 215 Mag primers out of my .30/06, but if you do use them, work your load up with them, don't start with a max load and slap one of them in there.
I won't be using any more Fed 215 in this load. They start showing excessive pressure just above starting loads.
MtnHunter I use the 215 in my 7mm Wby with a 160 Nosler and have'nt had a problem are you seeing sings of presure with the Barnes?
Yes, with the 150 gr. TTSX with less than max loads with RL 19, IMR 4350, and H4350. With WLRM and CCI 250 primers, sticky bolt and cratered primers went away with the same powder charges. Maybe it is just a pressure spike with the Gold Medal 215 Match primers. I have some Federal 215's that are not GM that I could try, but I think I have more WLRM on hand. I only have a few CCI 250 magnum primers but I used them just to validate if it was the primer or what. I'm going to work up some loads with the WLRM and WLR primers and see what works best.
Yes, with the 150 gr. TTSX with less than max loads with RL 19, IMR 4350, and H4350. With WLRM and CCI 250 primers, sticky bolt and cratered primers went away with the same powder charges. Maybe it is just a pressure spike with the Gold Medal 215 Match primers. I have some Federal 215's that are not GM that I could try, but I think I have more WLRM on hand. I only have a few CCI 250 magnum primers but I used them just to validate if it was the primer or what. I'm going to work up some loads with the WLRM and WLR primers and see what works best.
I use the Federal Magnum primers in anything that uses a large primer. I always work up from minimum loads. I rarely ever hit the max load because I stop adding powder when the groups start getting small. I own a chronograph but don't buy in to the "more velocity is always better" idea.
Theoretical ballistics are just that, theory; you can only hit what you can hit the instant you pull the trigger. I test everything out to 300 yards to see what it will really do as far as bullet drop, because until you actually test it in your rifle, you don't really know what it will do.
While I realize I don't need magnum primers for my 30-06 loads, I have a lot of Winchester Large Rifle Magnum Primers. Am I way off base using them with IMR4350 for my 30-06?
ps--I shoot 165 grain Sierra, Hornady and Barnes X bullets in that '06 I'm wondering about using WLRM primers in.
Post an Answer