Large rifle primers

[MagnumManiac]

When was this that you speak of?
It was lip service because prior to this, all big bores made by Kynoch didn't't use a magnum primer, which was the case right into the 70's.

Research this, just because Federal were using them doesn't mean other makers were using them. Have a look when other manufacturers of ammo/primers made magnum primers.
I even remember the the issue that first talked about Federal bringing out magnum primers in Field and Stream.

Cheers.

 

[Mike Matteson]

Point is you can have standard primers in magnum load!

You don't need a mag primer in those loads. In the 80 gr area that becoming a different thing. I never use Mag Primes. Never got any increase in speed, Grouping increase in size too. Several of my reloads run 5+grs of powder over what the max loads show in the manuals. I do try them, but haven't had much luck with them.

 

[asd9055]

When was this that you speak of?
It was lip service because prior to this, all big bores made by Kynoch didn't't use a magnum primer, which was the case right into the 70's.

Research this, just because Federal were using them doesn't mean other makers were using them. Have a look when other manufacturers of ammo/primers made magnum primers.
I even remember the the issue that first talked about Federal bringing out magnum primers in Field and Stream.

Cheers.

Always educational to read your postings. I look forward to them. Thank you.

 

[Lefty7mmstw]

When was this that you speak of?
It was lip service because prior to this, all big bores made by Kynoch didn't't use a magnum primer, which was the case right into the 70's.

Research this, just because Federal were using them doesn't mean other makers were using them. Have a look when other manufacturers of ammo/primers made magnum primers.
I even remember the the issue that first talked about Federal bringing out magnum primers in Field and Stream.

Cheers.

you do you... I'll do my thing... Bring a brass rod with if you decide to hunt somewhere that it's winter with some of the charges you are talking about with a mild primer. We've had the hang-fire or squib issue a couple of times; never again...
btw, I have ignored the thread and will not be responding further... This is going straw man and I'm not interested in continuing the conversation.

 

[asd9055]

@MagnumManiac
Some people just read the part they disagree with, and ignore aeverything else. Nobody said he had to do we I and others have done.
Nobody said he had to do it in his conditions. What was said, before is that ti can be done and has been done.
And yes, we ALL do what fits us

 

[Hugnot]

More info on primers:

https://arxiv.org/ftp/arxiv/papers/1203/1203.2701.pdf

I have been using magnum primers for over 50 years and started using them in H380 loads in .22-.250 & .308 W, at times at temps under 20F.

 

[Mike Matteson]

Well I lived in S. Cal. Worked my loads up there. Hunted in Colo. in weather that was -20 to -25 below. Never had a problem. In either hot weather or very cold weather. Must have been something wrong. Every time I press the triggger it went off. 6 elk and seven shots. One wasn't a good hit. Took a second shot. During the first and second shot I broke a cow elk hip behind the bull. That required a second shot, or maybe I should say 8 shots and 7 elk. Oh maybe the H4350 and Fed 210 primers @ 75.5 grs. 165gr Nosler Ballistice tip. There isn't much change with that load in hot or cold weather. A couple elk were at 400+yds in the very cold weather.

 

[ARlife4me]

In severe temp swings from proven loads for different temps per temp range, what would/could you say how much pressure (up or down) those loads would/could be? If your low temp load is near top pressure (within 5%) at what degree would/could it be safe? As some have stated they use "A" primers for low temps and "B" for high(er) temps. For many decades all I've used were (and so far still am) 250's in 264wm. That given was for 60*+ temps as I don't shoot much under that temp with that gun.

 

[JKB57]

Was shooting 215M in my 300 win mag tried 210M and got way better accuracy by going to the 210M,with 215M the groups opened up both were shot with the same powder charge and bullet weight

 

[Mike Matteson]

Was shooting 215M in my 300 win mag tried 210M and got way better accuracy by going to the 210M,with 215M the groups opened up both were shot with the same powder charge and bullet weight

There you go! I see it in 40gr powder loads with mag primers. I find it interesting that some of the 6mm are changing from LRP to SRP's. They doing better grouping too. So there got to be something up with that. I have tryied Mag Primers and not gain. Got larger grouping too. My son seem to think they are better in his rifle. The Rifle is Same type of action, barrel and same reamer.
Part of it is finding the right combination for velocity, accuracy. I don't have any rifle that holds more than 77+ grs. I can see the mag primers if the case is holding above that possible. Again I would have to test to see how they work out. I never had a problem with Fed 210 primers in Hot nor Cool weather. That's from 110+ to -20 below. I did have a problem with powders. So I generally use H4350. I had a big problem with IMR 4350 powders. I have never gone back to that type of powder. Generally I use single based powders. I am going to give some of them a try. I am looking at lower flame rate. There is powders that show up inbetween H4350, H4831 and H1000.

 

[asd9055]

There you go! I see it in 40gr powder loads with mag primers. I find it interesting that some of the 6mm are changing from LRP to SRP's. They doing better grouping too. So there got to be something up with that. I have tryied Mag Primers and not gain. Got larger grouping too. My son seem to think they are better in his rifle. The Rifle is Same type of action, barrel and same reamer.
Part of it is finding the right combination for velocity, accuracy. I don't have any rifle that holds more than 77+ grs. I can see the mag primers if the case is holding above that possible. Again I would have to test to see how they work out. I never had a problem with Fed 210 primers in Hot nor Cool weather. That's from 110+ to -20 below. I did have a problem with powders. So I generally use H4350. I had a big problem with IMR 4350 powders. I have never gone back to that type of powder. Generally I use single based powders. I am going to give some of them a try. I am looking at lower flame rate. There is powders that show up inbetween H4350, H4831 and H1000.

Very well stated. Like you, I know what worked for me. I don't need to convince anyone to try, just stated that I had two loads, one for each different rifle that had better groups with Large Rifle. Harvested many with one. The secnd has never seen the field yet.

Sometimes, its easy to blame the primer for a misfire rather than try to understand what "WE" as loaders might have had something to do with it during the loading.

 

[Hugnot]

Ball powders are now more available than extruded powders. No extruded powders are made in the US now. I trip to my LGS shows about 70 % ball powders to 30% extruded powders.

Performance of 36.5 grain StaBall loads in .22-.250 was improved using Fed215M primers over Fiocchi LRP's.

My experience has been no hang fires or problems using standard primers at 20F or colder with extruded powders with loads up to 60 grains. Different situation with StaBall - this stuff must have heavy flame-resistant deterrent coatings. I would use magnum primers at any temp with StaBall.

6.5 CM loads using 47 grains of RS Hunter & 120 Barnes Match Burner bullets using SRP CCI 41's showed huge velocity spreads, but situation was improved with SRP Rem 7 1/2's and better yet with Fiocchi LRP's in different brass. 6.5 CM & 6 CM loads using SRP CCI 41's performed well with RL16, SW 4350, AA 4350, & H4350 - all extruded powders.

The CCI 34 primers - "For 7.62mm Ammunition/ Large Rifle Military Primers" are intended for 7.62X51 ammo loaded with a variety of powders including ball powders and intended for use under a wide temperature range. 34's are magnum equivalent.

Comparisons of StaBall, RL16 & T8000 in .22-.250:



T8000 is sort of like H4831 and would have comparable deterrent coatings - I got a good stock of it & use it in 75 grain .22-.250 loads.
RL 16 is my powder of choice in .22-.250 but not availble.
StaBall is available but does better with magnum primers.
Only 5 rounds tested - when primers become more available, more testing. A Fed 215 or CCI 34 might improve T8000 loads.

I never, ever shot a rodent when the temperature was under 50 degrees F.