This is a discussion on Speer 147gr 9mm Gold Dot Ammo - Performance within the Defensive Carry Guns forums, part of the Defensive Carry Discussions category; ...
My only quibble would be your comments about the shelf life of your carry ammo. Ammo lasts a very long time. Also, the concern about oil or solvents killing the primer seems to be overblown - the folks at "theboxotruth" did some testing on this, and there did not seem to be an issue. However, I use grease (TW-25B) to lube my carry guns, so it tends to stay put anyway.
I will agree that, if you chamber and un-chamber your rounds repeatedly, you should line your rounds up to be sure there is no set back.
Nice video, thanks.
I also mention that oil penetration isn't a common problem, but if you over lube and let it sit for a year or more on ammo you never fire, it can become a concern.
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Interesting...the only time I unload my carry guns are when I go to clean them, which is monthly or after they get fired, whichever comes first. Otherwise, they are always loaded. I do this specifically to avoid the set-back issue - and simply because there is no reason to unload them. They go in a safe, and are therefore "safe." Plus, I figure the less you mess with them, the less the risk of a ND. Just the way I do it.
If you hand a weapon to someone, it's considered to be a good idea to unload it first. If you clean a weapon, it's generally a good idea to unload it first. If you put a weapon in a safe, it's generally a good idea to unload it first.
Perhaps you live alone, have few friends over and find it comforting to have every gun in the house loaded. I have children, a wife, and a constant cycle of friends and family coming and going. As such, I have one loaded weapon in the house, the one that's on me. When I take that weapon off, it's unloaded and stored safely.
I also fire my carry ammo regularly so I constantly have relatively fresh ammo in my carry gun. I don't leave the same ammo in my carry gun for months or years. I'm constantly practicing, so I might as well fire off the old and replace it with new.
I have a couple of safes. My carry guns go into a small one lashed to my closet shelf that is always locked. I leave them loaded because frankly I don't really want to screw around with constantly loading and unloading them, and they are always either on my person or locked in a safe that nobody has the code to. I clean the carry guns about once a month, and the top round that was racked into the gun gets moved to the "shoot this next time at the range" ammo pile (assuming it looks fine) and I top it off with a fresh one. I also change mags at this time. When the box of 20-25 defensive rounds is gone using this tactic, I shoot out the rest of it during the next range visit, and buy a new box. This means I have a box of defensive ammo for about a year total. I go to the range almost weekly, but I shoot the defensive stuff sparingly once I determine it works in the gun in question. At $20-28 / box, I simply can't afford to practice with it all the time with as much as I shoot. As it is, I burn about $250/month on target quality ammo alone... I'd love to be able to practice all the time with the defensive loads, but its just not realistic, and I haven't won the lottery yet.
"Brilliant. So now we got a huge guy theory, and a serial crusher theory. Top notch. What's your name?" - Paul Smecker
1) all of my working guns stay loaded. Springs are cheap.
2) the grease grooves on bullets are not used with petroleum based lubes, but rather a wax mix.
3) bullet set back- a simple set of dial calipers allows you to monitor this.
I have duty mags that have been in service since 2000. I keep them loaded minus 1 round.
Ignorance is a long way from stupid, but left unchecked, can get there real fast.
I use all of my mags in practice for any particular handgun. Some folks have mags they rarely or in some cases never use. I've been shooting long enough to know that all mags aren't created equal. To make sure I have working mags, I use them - regularly.
It's a good idea to monitor setback if you never fire your defensive rounds. I opt to keep cycling fresh ammo into my carry gun. I do this for peace of mind and it negates the need to measure the OAL of my defensive rounds at regular intervals.3) bullet set back- a simple set of dial calipers allows you to monitor this.
I have mags that have been heavily used for even longer than that, I still have 1st gen Glock mags that work fine. However, those old mags aren't in my carry rotation, I keep the newer mags in my carry gun(s). Since I have the sickness of wanting a new Glock at least twice a year, I have a steady influx of new mags on hand. Why buy mags when new guns come with two? Buy new guns! :)I have duty mags that have been in service since 2000. I keep them loaded minus 1 round.
If I have to unload a round more than twice, I put it 4 or 5 down in the mag so that a fresh one is in the pipe.
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My firearms that see every day use stay loaded 24/7 in or out of the safe, I use range mags for the range and carry mags for carry. Any round observed suffering from bullet setback gets tossed and the 147gr Gold Dot is a good choice.
"There is a secret pride in every human heart that revolts at tyranny. You may order and drive an individual, but you cannot make him respect you." William Hazlitt (1778 - 1830)
Best Choices for Self Defense Ammunition
I wanted to clarify what setback is for those who might not know what we're talking about.
Below are two rounds. One is noticeably shorter than the other. That's because it's the first round in my magazine and it has been chambered several times over the last few weeks. Yes, this round is only a couple of weeks old.
The reason it's shorter is due to the setback (bullet being pushed into the case) caused by the act of chambering the round. Each time you chamber the same round, the more the bullet gets pushed back into the case. This is something many people don't think about.
Why is this a problem? Because as the bullet gets pushed further back into the case it increases the pressure generated by the round when it's fired. If the bullet is pushed back far enough, it can cause an unsafe pressure build-up which results in things like the infamous Glock "ka-boom".