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Rifles, Reloading, Optics, Equipment
Reloading
How good are my primers?
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<blockquote data-quote="crkckr" data-source="post: 2905777" data-attributes="member: 78056"><p>I've been storing primers in plastic bags and/or in surplus ammo cans for years with no problems. I put a drinking straw in the corner of the bag then close the zip lock up to the straw, then suck as much air out as possible and then pull the straw and close the bag the rest of the way, creating a pretty good vaccum in the bag. I've had primers that I don't use very often stored for many years this way and while some of the bags relax after a year or so, the majority still have a good seal. I also use a 5 gallon bucket with a good rubber seal but I have no way to remove the air from them. They are stored in my relatively dry basement (I have a humidity monitor which usually stays pretty constant at around 60%). I do have a few of most of the major brands and have never had any problems switching between them, although I always load a test batch of 5 to shoot over the chrono to confirm velocity. Since I tend to load most of my "good" SD/HD and hunting ammo right up to max velocities/pressures, the only time I actually reduce a load is when changing powder lots or when changing primer types, e.g. when going from a standard to magnum or vice versa. Since these items can show the greatest variation in pressure, I use more caution when any changes are made in these components. I've been fortunate in that I have only experienced a major change one time when going from one to another but due caution is always prudent! I did have a major change when changing powder lots using RL 7 but there was a very clear *drop* in velocity and pressure going to the next lot of about 100 fps. Ultimately I ended up doing the one thing the powers that be say to never do (hey, it's my powder and my butt on the line so sometimes I experiment here and there when logic says it should be ok!), that is mixing 2 lots of powder. As I had around 1/2 pound of the warmer powder left, I thoughly mixed the old (perhaps 2 years old) with the new and got my loads to within about 65 fps of the old data. I can live with that but again, it's the first time I've ever experienced that much of a change going from one lot to another. They actually do a pretty fair job keeping the lots consistent! I do think that testing, with a chrono, is especially necessary when using max loads, as it doesn't take much to push you into the realm of "too much of a good thing." Even with so few big changes over the last 50 some years of reloading, checking and confirming when making component changes remains the best way to keep yourself and your firearms in good working order!</p><p>Cheers, </p><p>crkckr</p></blockquote><p></p>
[QUOTE="crkckr, post: 2905777, member: 78056"] I've been storing primers in plastic bags and/or in surplus ammo cans for years with no problems. I put a drinking straw in the corner of the bag then close the zip lock up to the straw, then suck as much air out as possible and then pull the straw and close the bag the rest of the way, creating a pretty good vaccum in the bag. I've had primers that I don't use very often stored for many years this way and while some of the bags relax after a year or so, the majority still have a good seal. I also use a 5 gallon bucket with a good rubber seal but I have no way to remove the air from them. They are stored in my relatively dry basement (I have a humidity monitor which usually stays pretty constant at around 60%). I do have a few of most of the major brands and have never had any problems switching between them, although I always load a test batch of 5 to shoot over the chrono to confirm velocity. Since I tend to load most of my "good" SD/HD and hunting ammo right up to max velocities/pressures, the only time I actually reduce a load is when changing powder lots or when changing primer types, e.g. when going from a standard to magnum or vice versa. Since these items can show the greatest variation in pressure, I use more caution when any changes are made in these components. I've been fortunate in that I have only experienced a major change one time when going from one to another but due caution is always prudent! I did have a major change when changing powder lots using RL 7 but there was a very clear *drop* in velocity and pressure going to the next lot of about 100 fps. Ultimately I ended up doing the one thing the powers that be say to never do (hey, it's my powder and my butt on the line so sometimes I experiment here and there when logic says it should be ok!), that is mixing 2 lots of powder. As I had around 1/2 pound of the warmer powder left, I thoughly mixed the old (perhaps 2 years old) with the new and got my loads to within about 65 fps of the old data. I can live with that but again, it's the first time I've ever experienced that much of a change going from one lot to another. They actually do a pretty fair job keeping the lots consistent! I do think that testing, with a chrono, is especially necessary when using max loads, as it doesn't take much to push you into the realm of "too much of a good thing." Even with so few big changes over the last 50 some years of reloading, checking and confirming when making component changes remains the best way to keep yourself and your firearms in good working order! Cheers, crkckr [/QUOTE]
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How good are my primers?
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