I picked up a 7mm Rem. Mag today and only have a couple hundred Large Magnum Primers, what do you guys think on using a standard WLR primer in the 7 mag? My load is currently 140gr Sierra Prohunter behind 65gr. of RE 22. I will try and pickup some monday if the local has them, but if not I have an abundant supply of WLR's. With all the scare going on with obummer I think the primers are gonna disappear again.

I use std primers in a 7mag all the time.

If you have "a couple of hundred" LR magnum primers, then you have enough for a couple of years.

200 rounds wouldn't get me through winter...
try the regulars you might find better accuracy.
i like rem 9-1/2's with rl-19 in every case size i use it in.

I don't think I ever used a mag primer in my 300 mag, 416,338, or in any of my other rifles.

The Winchester Large Rifle primer is practically a magnum primer. Comes from haveing to light up all those dirty old ball powders.

Chances are it will make zero difference.

quote:

Originally posted by Dogleg:
The Winchester Large Rifle primer is practically a magnum primer. Comes from haveing to light up all those dirty old ball powders.

yep .. a gun rap compared the brisence (sp) and the wlr is hotter than some mags,.. if you have over 70 gr of powder, use a wlrm, if over 90, a federal 215 ,, no, really

quote:

Originally posted by jeffeosso:

quote:

Originally posted by Dogleg:
The Winchester Large Rifle primer is practically a magnum primer. Comes from haveing to light up all those dirty old ball powders.

yep .. a gun rap compared the brisence (sp) and the wlr is hotter than some mags,.. if you have over 70 gr of powder, use a wlrm, if over 90, a federal 215 ,, no, really

Saw same primer test. WLR achieved very favourable results, virtually a magnum primer and produced some best accuracy results.

which is why, until spring of 09, i burnt many many many many WLR -- they got scarce, and i could get 210s ..

for what its worth, WSR as pretty darn good too

Did a primer experiement shooting at 100 yd targets with my most accurate rifle. Long story short, found my magnum primer loads to hit target maybe an inch higher than my reloads with a standard primer. Only difference in my reloads were the brand/type of primer.

I use WLRs in .300 WBY. I get uniform velocities and to-die-for hunting rifle accuracy from my 700 AS. Sam

I have a very novel approach. I use magnum primers in magnum cartridges and I use standard primers in standard cartridges. Seems to work okay.

quote:

Originally posted by wasbeeman:
I have a very novel approach. I use magnum primers in magnum cartridges and I use standard primers in standard cartridges. Seems to work okay.

Yep,,Me Too

if you aren't in -20, and just burning 30-70 grains of powder, you don't need a mag primer -- full stop ... which means MOST rounds loaded with mag primers just match the belts -- sure they work, but is that the best way?

Off topic but....

I chrono'd my .270 WSM last year with the same load of H4831 powder in two dif primmers

CCI and Win

Win was 50 fps faster!

And what exactly is the advantage of not using a magnum primer in a magnum cartridge??

Wow. Lets see. ONE brand and size of primer to buy and stock. Far easier to get 4 years ago wasn't it. What is the advantage of using a magnum primer in a load that doesn't need one? Lets review reloading 101 on primers yeah?

every reloading book on the planet specifically calls out when then they use a magnum primer, or declare that "all loads with mag primers" -- in fact, when one re-read reloading manuals, one see a clear logic choice of specifically to NOT use a magnum primer, unless you have to..

some things attributed to using magnum primers -- some are real, some may be imagined..

higher starting pressure - true
higher overall pressure from the same loads - true
higher velocity - MAYBE true, maybe not -- let's not have the sophomoric discussion that higher pressure means higher velocity - even a cursory look at any decent reloading manual, armed with the simple knowledge that all the max loads for normal loads (not reduced loads) are roughly at the same pressure, but wildly different vels...

need for magnum primers in large cases - but people put these in 6.5/350 rem and the original short mags, like the 7 rem and 300 win -- when the "logic" for mag primers comes from full sized HH cases, or even improved versions thereof

reduced accuracy -- this is likely a myth, but hey who knows

"hard to light powder" - if we are talking h1000 or other charcoal, perhaps its true, but for normal loads, in normal RIFLE powders, .. well, let's just say that we are all concerned with non-sparking tools around powder... so, there is a CHANCE this is real, but only in extreme cases

"light loads in big cases" - this is idiocy, and is very dangerous UNLESS the powder is designed for this.. like trailboss. sometimes true

big handful of powder -- of the number of cases out there, very few, relatively, burn over 70gr of powder, much fewer still burn over 90 or 100 gr... hand fires with these are DANGEROUS in 3 means - 1- injury due to bad muzzle control during the time required for waiting for the boom (i've PERSONALLY seen this over 10 seconds in 500 jeffery ad 577 nitro) 2: injury to shooter/bystander if the case is ejected and cooks off in the air/on the ground/when being picked up, and 3- if it flashes over and detonates rather than burns, like light charges in big cases proved by ackley, destroying the firearm and/or injury - can be true

so, let's see.. more pressure, perhaps less accurate, recommended against unless REALLY needed by reloading manuals, and unneeded unless burning a tablespoon of powder...

i always recommend against using a mag primer unless proven conditions require one or load dev has shown its needed...

not just because the case is labeled, or not, a magnum - NONE of my wildcats are called magnums, and only one has a belt (personally, i am indifferent on belts) but with the exception of the 257 JLS, all of them routinely burn AT LEAST 70 grains of powder, some over 140 grains .. yes, 140 grain i said ...

while there are many many people that have reloaded more rounds than I, and many many that have reloaded more different, and even many many that have reloaded more wildcats,there are very few people that have the combination of time on reloading, along with being trained in the scientific method, and interested enough to buy a pressuretrace, and then send loads off to a powder lab to verify pressure ..

just saying there's alot of experience and science behind the reloading manuals studied opinion, and after decades of reloading, I tend to agree with them too

Can't say that I love this place anymore....

Why?

ROFLMAO!!!!! I may not be the sharpest knife in the drawer but I've never had a problem dealing with several bricks of different primers. If you're a very, very careful reloader, you have on the bench ONLY the can of powder you intend to use; and you have on the bench ONLY the type of primers you intend to use.
I think I'll stick to what the reloading manuals say.

I have always used the Mag primer when the book says to, with one exception. My .300 Winny gets Fed 210M primers for 180 grain bullets because when I use the Mag primer it blows the group to an inch from one hole. Eight of my Elk hunting buddies do the same and it has proved successful for many huntreds of rounds on paper and many years of hunting. Good shooting.

quote:

Originally posted by wasbeeman:
ROFLMAO!!!!
I think I'll stick to what the reloading manuals say.

Yep. Nearly exactly what I said.

quote:

I use magnum primers in magnum cartridges and I use standard primers in standard cartridges

I use CCI 250 Magnums in every thing I own with the exception of my .30-40 Krag and my .223.


Ive never had any issues doing it, If I did id try something different.

I just firmly believe in absolute reliability in ignition.


IMHO


Cal30

.[/QUOTE]

Yep. Nearly exactly what I said.[/QUOTE]

That's what I thought. It just took you a long time to say it.

Now that's funny.

quote:

Originally posted by wasbeeman:
.

quote:

Originally posted by jeffeosso:
Yep. Nearly exactly what I said.

That's what I thought. It just took you a long time to say it. [/QUOTE]

It's obvious that you have no intention of an honest conversation. Your position, as stated, was to use mag primers in mag cases. When, in fact, the majority of reloading book loads do not call for such.

I am being consistent and offering sound advice. If you read what I said, not why you infer, the overall is to only use a mag when the book calls for it, or when you meet conditions greater than the need for a standard primer. Based off real like SAFE RELOADING experience. That you acid at that only tells me your lack of experience in the exact area.

Your position of "use a mag in a mag" runs contrary to many, if not the majority, of loads in the reloading books. And is irrelevant to the cases where you actually might need one, again as calls out by the reloading books, in SOme events.

I doubt you Amit you understand this and while likely continue to act like a blowhard. That's your choice.

My goodness, you continue to be excessively verbose. And now, you've started name calling. I'm sure your mother is proud of you.
My original statement was that I use magnum primers in magnum cases and standard primers in standard cases. And that is consistant with every load book I have owned.
I have read about using magnum primers in standard cases as a means to greater accuracy or velocity. And I've tried it and wasn't impressed. I've read that you need magnum primers in a standard cartridge if you hunt when it's cold. I haven't found that to be the case but perhaps it hasn't been cold enough when I have hunted. I've also read that magnum primers aren't needed in magnum cases but that just doesn't sound right so I've never seen any point in trying it.
So I stated my truths, as I have found them, simply. Without two pages of bullshit trying to impress folks with what a retorision I am.

quote:

I use CCI 250 Magnums in every thing I own with the exception of my .30-40 Krag and my .223. Ive never had any issues doing it, If I did id try something different. I just firmly believe in absolute reliability in ignition.

I have been using magnum rifle primers in all of the rifle calibers I load for, and have been doing so for 20+ years with no bad results. Think I will keep on doing such. Why can't people use whatever they want to as long as it is working for them and they can afford the components?

I'm of the mind that I should use Mag primers on the harder-to-light powders. WLRs are a little more Magnum than most standard primers...Rem 9 1/2Ms are prolly the lightest and almost the same as standard.
So...Rx22 should be pretty easy to light, I would use standard primers, until I got WAY high in loads, say a full-size Magnum, full of powder, then I may go to either CCI 250s or Federal 215s. I'd prolly do it only if I thought I was gonna use it around 0* or lower, tho'.
Have fun,
Gene

Back a few years ago, Handloader had a story about working up a 308 load that would equal Federal Gold Medal Match 308, the accepted standard.
After 100s of load combinations, the best primer was the CCI 250 (a magnum primer). The 308 is not a big case and Varget (the winning powder) is not known as hard to ignite.
After reading that story over and over, I decided to use Magnum primer for all large rifle applications. Has it made any difference ? I don't know but they always work and accuracy is as good as it ever was in any given rifle.
Pistol loads, I think are different. If I load 300 gr gas checked hardcasts with a max load of H110 in my 44 Magnum, I always use magnum primers. If it's a 220 gr bullet dropped from an old 44-40 plain base mold and a cowboy action level load of TrailBoss, I stick with standard primers. Why ? H110 is a harder to ignite powder especially in cold weather and I only use that load as a last ditch bear stopper. Failure is not an option, whereas the cowboy action load is shot at gongs or paper. While 100s have gone bang with never a failure, if one did it would not result in getting chawed on.

My manuals all seem to match the magnum primers for magnum cases theme.Sure my .416 Rigby and STWS don't actually say magnum on them but they get them too.
The exception that I make is for the original magnum; the .375. That one stubbornly insists on shooting better with 210s rather than 215s in my rifles and I've come to where I quit fighting it.
CCI primers are mild in their respective categories, and I've eventually got to where I won't use them in cold weather at all. The worst offenders were the 250s that I was useing to develope loads for my first .338 Edge. I was shooting in -30 C to -40C and experiences misfires up to 50% on a bad day. The primers would light, but the powder didn't always. The 90+ grain loads of H1000 would turn yellow and weld into a mass that I had to scrape out of the case with a nail. After checking for all the standard mechanical problems, includeing swapping to a #36 pound striker spring I gave up and broke into my stash of 215Ms. (Last round of shortages) Never had another misfire with that rifle.

I used to use BR2s in my favorite 22/250 coyote rifles until I noticed that there were far to many cold weather misfires. 210Ms solved that one too. Too bad, the BR2s consistently shot better in the summertime.