Using the Right Primer

good morning I'm going to talk this more about primers specifically primers I don't think that there are very many people that understand the differences in primers I'm going to try to explain these things and everything that I explained I want you to pay detailed attention to everything that I say I find that people that are listening to my videos are not listening fully to some of the things that I'm saying so if you listen closely to everything that I say you can get a grasp of what I'm trying to point out to you and I'm doing this to save answering some emails that I think that are unnecessary answering questions large rifle primers large rifle primers basically come in various degrees of of power what I mean by power in other words the ability the ability to ignite powder charges it should be pretty obvious that of somewhat of a milder primer is more ideal for cases that are not large capacity cases may be smaller to mid capacity cases and then we go from mild primers to hot primers hotter primers and the hottest primers these are divided into various categories basically it applies to the application of hand I'm going to try to explain over experience what these differences are many years ago somebody tested primers and categorize them as to their power there's another word that's used is called bristles in other words the amount of spark the amount of spark that's created there and the length of that spark in various degrees of power all right we're gonna start with some of the milder primers the mildest primers that we have available commonly for large rifle our CCI adventurous tube and CCI 200 primers and those primers are everybody makes a good primer don't misunderstand anything there it's just that some primers do a better job in certain situations than other primers those primers are reasonably close to one another being a mild primer the CCI best Rest tube was developed for more uniformity that's what best Rest primers are you know match primers or benchrest primers the lots of primers when tested in the lab show a closer variation and they're categorized as best Rest primers or match quality primers so starting right there those are fairly mild primer those primers would be pretty good for something in the neighborhood of say twenty two two fifties to fifty sandwiches you know up to thirty or six ice size cases and so forth and I don't think that you know you're going to go wrong with either one of those primers in those cases however just using one or two primers doesn't tell you everything that you need to know you need to try various primers and there's a quite a selection of primers we're going to go from there to a bit harder primer we're going to go to the window a large rifle primary the federal 210 match CCI number 34 which is a military primer the CCI 250 which is their Magnum primer Remington nine and a half primers from it's a night and a half Magnum primers these are all very good primers and you need to you need to have on hand various various primers to test in your rifle with specific powders and charges the other thing is as we progressed from a standard type of a primer to a Magnum primer the Magnum primer is obviously a little bit more powerful just like the 300 Winchester is more powerful than the 30.6 you get it you see you understand now we can use these standard primers most of all these standard primers in say even are some of our Magnum cartridges not our big our great big Magnum cartridges but what I've categorizes are more standardized Magnum type cartridges such as you know we'll start at 257 Weatherby and go to 338 Winchester cases about that capacity not full-length capacity cases that's as in 300 whether be folding capacity cases but that category of cases those primers can work very good very good in those those cases and if I was loading at 257 Weatherby at 270 Weatherby a 300 Winchester Magnum a 338 Winchester Magnum I would quite likely start somewhere right there with a Winchester large rifle primer now I'm going to mention something here that very few people understand just because that doesn't have a magnum categorization behind the Winchester large rifle primer that doesn't mean that it's not a suitable primer for Magnus likewise with some of these other primers that I'm mentioning and the fact that matter is is a wing search or large rifle primer is almost a dead ringer for the federal 215 primer and it was around a long time before feather came out with her 215 Magda primer they also make that primer in a match version so anyway you know with those primers that's probably what I would use and Remington nine and a half primers Remington nine and half Magnum primers Remington's always made a very excellent primer they're very very uniform irregardless and I find that nine and a half and nine and a half Magnum primers are very very good in some of our improved lock six type capacity cases they 2506 up to say 338 off six or the improved versions any of the acne improved versions off the 3006 case a nine to half primer has always been one of the very very best primers that i have ever found for these cartridges and the reason that I say it's the best primer is because the uniformity that I get in the accuracy level that I get with the powder charges that I'm using and there are other there are other choices we've got the federal 210 match primer that's still what does categorize is a hot primer but it's again more uniform and I use a lot of feather 210 match primers and even in some of our Magnum cases this more standard length Magnum cases is what I'm applying this to and this also applies to our Winchester short Magnum cases our Ruger compact Megan cases the PRC like the six five PRC cartridge anything anything that Remington made the short action ultra matte cases those primers seem to show better ability to give us the uniformity that we need the accuracy that we need than some of these other primers now I'm gonna go from there I'm gonna go to the hottest the hottest primers federal 215 and federal to tip 210 are basically categorized as like the hottest primers not the very hottest primer the very hottest primer is the Winchester large rifle Magnum primer don't confuse this primer with any other primers it's much much more powerful and mine in my memory everything that I've been able to to determine it's about 30% more powerful primer then say the federal 215 or the federal 210 primer and that primer was developed specifically for large very large capacity cases I'm talking about cases with capacities 90 grains up to about 140 some grains that primer will ignite those charges and they'll do it very well and for instance the 30 by 378 338 by 378 the primer to be using because the the hundred plus grain charge is 100 120 some green charges depending on what year you're doing here that's the primer to ignite those big heavy charges not the federal 215 not the federal 210 or any of these other large rifle primers even if they're they're categorized as a Magnum primer they simply do not have the power the ignition ability to ignite those big heavy charges properly and I found this to prove how true I know when I'm not getting uniformity there are several reasons there are several indications when I'm not getting the uniformity that I need I look for standard deviations on my chronograph close standard DV if I'm not getting him and I think that I should because the charges that I'm using and or we've got delayed ignition when the firing pin falls and it hits the primer there's a faint faint instant of hesitation that's called basically a hang fire if you've got a hang fire your primer is simply not powerful enough to ignite your charges you need to go to a hotter primer and those big cases a big Wetherby cases I don't use anything other than a Winchester large rifle Magnum primer I just finished the rifle for somebody in 30 by 378 and I was getting tremendous velocity and very very good good in forma t believe it or not I was getting standard deviations down there in the fours of the fives when the loads that I worked up for that specific rifle this is what we're talking about standard deviations like this we don't want a standard deviation up there in the 20s or 30s the 40s or the 50s you get something like that you need to change the primer that you're using to ignite the powder that you're using we've got a tremendous amount of very slow powders this being each for a lot of years about the slowest thing that we had available to handle it was was Ison's 4831 it was a wonderful powder at the time for the application well we've come light-years ahead of that since that time the you known - 48:31 still around is still a wonderful powder and it has many many applications and does a very wonderful job but we've got a lot of a lot of powders that are way way way slower and the cartridges that these powders are being used in you know capacity of cases say around the 300 Weatherby capacity cases up to 338 3 seventy-eight Wetherby capacity cases some of the improved cases from the Rigby Rigby design or the 505 Gibbs we need we need this big we need this is very hottest large rifle primer Winchester large rifle primer for this application and I'm just going to indicate a few areas here and this is going to give I'm not gonna touch on absolutely everything but this is going to give you some basic kind of pointers capacity cases where specific primers seem to work very very well and when I'm loading for instance 300 Winchester Magnum 300 Weatherby Magnum 7bo 300 Weatherby seven millimeter STW things of this sort I always start with the Winchester large rifle primer or a federal 215 primer and I may I may try another primer there I may try Remington's nine and a half Magna primer I may try the CCI 250 Magnum primer those are my third and fourth choices but as a rule those those cartridges the cartridge is very close to that run on that primer just as I mix a little bit earlier the actually improved cases show preference for Remington nine half primers and Federer 2:10 match primers those seem to be seem to be the primers that really run in those cases and there are there are situations where there's concern be slower powders use for instance the Hackley improve cases let's say a 25 watt 6 or 65 Watts exactly improved those those cases Ram shot makes a powder called Magnum and that's considerably slower prouder it's a denser powder you can get more of that and in that instance you might have you might want to go to a remington i and a half or a federal 215 primer with that with that particular powder in those cases now this very hottest primer it should be quite evident in my conversation so far that it's not a 3006 primer it's a primer this ideal for 1940 green charge charges the slow burning powder and all sorts of different cartridges it serves the world isn't supply the the primer for a 3006 capacity case but I see people using that they don't understand they don't understand what's going on here there's way way more ignition here then what's necessary to ignite the charges of anything that you're going to use in a 3006 and it's also much much way too much primer for anything say 300 Weatherby and below and that's not to say that that you might have a certain a certain rifle that might let's say a 700 300 Weatherby with some very very slow powder and I'm talking about hikes ins aged 69 50 10 some of the very slowest bit of ori powders that you might want to use in that cartridge there could be a situation where that winchester large rifle Magnum primer might show some ability there because the capacity of the case because the very very slow powders are you using in that size of the bore bore size has something to do with with some of this ignition also not just the actual powder charges and the capacity of the case but anyway those those are some pointers that I'm trying to offer everybody to edge you in the right direction we've been talking about large rifle primers talk some about small rifle primers remington six-and-a-half CCI for hundreds and Remington seven and a half benchrest primers and I have I have all these primers and I use all these primers for certain applications but most of my application I use nothing but a Remington 700 have primer this is a absolutely wonderful wonderful primer and it doesn't tremendous a very very tremendous job in the case is designed to accept the small small rifle primary you're going to find that 17 calibers 204 calibers some of the improved cases like on the 223 case and so forth at that CCI I mean the the Remington seven-and-a-half benchrest primer is a much more ideal primer will give you a much better accuracy had much better uniformity than almost anything I've used nothing but seven and a half primers for instance from the very beginning I wasn't a bit I was involved with with some of the development of the six millimeter PPC at the time when I was working for for spear bullet company I built the pressure test gun the accuracy guns to ring that cartridge out and over the years and then I have built many six PPC's I've used nothing but seven and a half primers you know people have used other other primers food primer but that that primer is never shown you know the 205 primers never shown me you know the top acts the other people have had very excellent results in it I have not so anyway I hope that I'm giving you the information that you're looking for I've touched on quite a few areas here and as I say listen to each word that I say apply to what it applies to so that we don't get you know off on what I'm saying and what I'm not saying anyway I think that pretty well covers it folks you

Channel: The Real Gunsmith

Views: 30,877

Keywords: the real gunsmith, randy selby, randyscustom rifles, long range hunting, long range shooting, primers, federal primers, winchester primers, cci primers

Id: PL_nlMTjW1Y

Length: 20min 25sec (1225 seconds)

Published: Sat Jul 08 2023