Welcome to the world of many different load combinations. 9mm is a high pressure cartridge and you’ll notice the COL varies between those loads. Shorter COLs with the same bullet will result in higher pressures at the same charge weight. It’s important to keep that in mind especially if you’re using load data for a similar but different bullet. Seating depth is pretty critical if trying to extrapolate load data.Wow, but this is very different….
Does “ARC” stand for, “Another Rifle Cartridge”?That sounds like a good plan. I'm sure you will catch on real fast - the jargon, or "lingo" won't be foreign to you for long.
Truth be told, I had to "Google" the 6mm ARC because it's newer than my "Cartridges of the World" book, and I couldn't find it in any of the loading manuals I have handy. But yeah, it looks like it takes .243 bullets.
There are NO stupid questions, just ones you don't ask that get you killed or worse.
...it should stay effective... /QUOTE]
Just remember, "should" and "will" are two very different words with very different meanings. Most likely, it is perfectly fine. That being said, if I were working with powder that old, I would be starting at the very low end of the load data, and slowly work my way up. It's really easy to start on the low end and work your way up to where you start pushing the limits. It's a lot harder(and more painful) to start near the limits and find out you were a bit too far past them.
I am also a newbe to the reloading game and someone talked about buldged cases. I got first fired cases, brass from the CHP range so I thought they were fine. I deprimed them, tumbled them, cleaned out the primer pockets, and installed small pistol primers. After all that I got to looking at the cases that had small bulges just above the rim and started finding cracks, of course I used a Magnifying glass but they were cracked. I deprimed them carefully and destroyed the cases and put them in my metal recycle bucket. I just wasted a lot of time on them, about 100-150 cases. It never dawned on me what they were cracked. I also got about 1300 Nickel cases none were cracked. I read online about bulged cases and that Glock handguns are mostly responsible for the bulges but the CHP only use S&W 40's, don't know how true the bulges by Glock is but I wasted a lot of time. So, take it slow and go over your brass with a fine tooth comb or a magnifying glass. Good luck, Lots of great advise given here!!
I’m experimenting with .40 frangible. It dumps all the energy at once.Thank you All for the advise and tips! I am not looking to extend the range of the 9mm or even try to make it a 100 yd dead ringer. I think I will bring the charge back down a bit and settle in where it is comfortable to use the powder measure that I have set up for quick loading. Checking every ten rounds or so to make sure I am within a descent +/-. Even an under powered load is better than a rock WTSHTF…. LOL!
Hey, Markie, is that the Sinterfire bullets? If you find them the Federal Guard Dog bullets are EFMJ's - expanding Full Metal Jacket - designed for FMJ-only New Joisey and are meant to do the same job as a frangible - reduced penetration, especially in sheet rock - without the cost and complexity. They use a FMJ profile and feed just like an FMJ but are light weight like frangibles. I found them in 105gr. 9mm for $90/100 at Midway a few years back and bought 3K with free shipping and a coupon for $10 off each $100. I see them around sometimes for close to that as factory seconds and on auction sites advertised as "nickel jacket FMJ."I’m experimenting with .40 frangible. It dumps all the energy at once.
Mudway had 135g 1,000 for $70 a few years back
Yeah, Sinerfire! I loaded 100 rounds and they are good. I would like to do a test on drywall and water jugsHey, Markie, is that the Sinterfire bullets? If you find them the Federal Guard Dog bullets are EFMJ's - expanding Full Metal Jacket - designed for FMJ-only New Joisey and are meant to do the same job as a frangible - reduced penetration, especially in sheet rock - without the cost and complexity. They use a FMJ profile and feed just like an FMJ but are light weight like frangibles. I found them in 105gr. 9mm for $90/100 at Midway a few years back and bought 3K with free shipping and a coupon for $10 off each $100. I see them around sometimes for close to that as factory seconds and on auction sites advertised as "nickel jacket FMJ."
I guess I am just confused again…LOL! Do most reloaders increase the powder loads until they get a case failure then back it down? I guess my brain tells me to find a safe and consistent load, then adjust my sights to the very specific load in which I am using… I don’t want a catastrophic case failure to figure out that I have over charged a round. I love my firearms and some of these powders and bullets bring too much risk. I am absolutely positive that if you are defending yourself, your target is not going to laugh at a “target round” being fired at them instead of a hollow point. I promise, both are going to do damage. Additionally, 3-400 FPS is not going to bounce off and fall to the ground. Why push your luck? Hopefully this post doesn’t start an argument… IDK
I guess I am just confused again…LOL! I guess my brain tells me to find a safe and consistent load, then adjust my sights to the very specific load in which I am using…
Really? I wouldn't recommend this strategy.I normally start .1 - .2gr above max.
That's bad advise, anyway you sell it.For autoloaders I normally start .1 - .2gr above max.
That's bad advise, anyway you sell it.
I try to get the RIGHT charge in each round. That’s the charge weight that makes that combination of bullet, powder, and COL for a particular gun happy. Remember, happy gun, happy life. There may be another variation of that, but, the key thing is we don’t know a priori what a gun likes in a reload. That’s why we start at min and work our way up. I’d also caution that you don’t want to start below min as it may result in a squib load which is not a happy day either. Good luck and let us know how it goes.I started having these thoughts that people were just trying to get the most charge they could in each round.