Ammunition & Hand Loading > Cartridge and Shotshell reloading
On reloading...
Neeco:
--- Quote from: 00BUCK on February 05, 2013, 12:45:05 AM ---Midway USA's 55gr Dogtown HP's over 25.7gr of H335 (or WC844), 18" 1/9 BCM SPR stainless barrel with Miculek brake are wicked deadly on P-dogs. I use a COL of 2.210. I group them at under 1" @ 300 meters. My MV is right at 3100fps.
Like Dan, after sizing I run all my brass through my trimmer (RCBS TrimPro with the 3-way cutter) to 1.750. If it gets trimmed, great. If it didn't need trimmed no big deal.
If you are tuning a round to a specific gun it is a good idea to find the distance to the lands as unfy describes above. I split the case neck with a dremel disk so that the bullet could slide in a little easier but still have enough retention to get a good measurement. My distance to the lands for this particular rifle is 2.226 which is kind of tight IMO. I tested several different lengths from 2.19 up to 2.220 and found the sweet spot at 2.210. It took quite a while to work this load up first getting close to MOA with the powder charge then fine tuning with COL, a small charge change and more COL tweaking. Sometimes people get stuck on not finding a good COL and blame the bullet or even the gun when maybe all they need is a powder adjustment. When testing loads I ALWAYS shoot trough a chronograph. That way I can see if a flier had some other issue that changed the velocity. Working up the "perfect" load can be quite time consuming, lots of note taking, a fair amount of frustration, and a TON of patience but the satisfaction you get when it is dialed in is pretty cool. And it makes P-dog thumping a lot more fun when you know you brought a tack driver to the game. For this load I weigh each charge on the digital scale to exactly 25.70.
I can put out around 100 of these an hour.
My plinking load is Amscore or Hornady 55gr FMJBT W/C (whatever I found on sale bulk) over 24.1gr H335 / WC844. COL on these is 2.20 and work acceptably in any of my 5.56 / .223 platforms. I'm right at 2750fps with this load out of a 16" carbine length setup. It's not sub-MOA at 100 yds but plenty good for general plinking and I can crank out around 300 hundred an hour. I don't weigh every charge but I do verify every 10th or 15th load on the digital scale, if I am throwing + or - .1gr I don't bother adjusting the measure. I use the RCBS Uniflow with the small cylinder and metering rod and have found it to be very accurate with almost no deviation in charge weight.
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I really wish I was on some land to do some Prairie Dog huntin! I am happy to just be able to shoot though, so no complaints.
I will play with my COAL once I get all my brass trimmed to 1.750. That is the first step.
So at the expense of being told: "Take our class!" I am going to try and set out my routine... Please let me know if you see something horribly wrong.
1- Case cleaning - I use the EZ Cleaner and the corn media that came with it. Tumble the appropriate number or cases for 1-2 hours with a tablespoon of supplied cleaner/polisher.
2- Inspect brass for deforms/inconsistencies. Count and sort.
2a - Lube (Was using supplied oil based lube, also picked up some ONE-SHOT.)
3 - Deprime/Resize
4 - Trim (new step, will trim all to 1.750)
5 - Hand prime and set in blocks for powder distribution.
6 - Setup powder throw. Set throw to within .2 of desired charge. Set seating die.
7 - Throw powder, weigh, trickle if necessary, funnel into case. Immediately seat bullet.
8 - Check COAL.
9 - Mark load data in notebook and on round case.
wash, rinse, repeat.
unfy:
Just a note on the class:
We cover an introduction to pistol reloading. Mostly plinking type loading etc. We don't dive into benchrest rifle loading, that could be a week long class heh. The goal of the class is to get new loaders' feet wet and simply loading their own ammo safely.
Neeco:
--- Quote from: unfy on February 05, 2013, 09:14:36 AM ---Just a note on the class:
We cover an introduction to pistol reloading. Mostly plinking type loading etc. We don't dive into benchrest rifle loading, that could be a week long class heh. The goal of the class is to get new loaders' feet wet and simply loading their own ammo safely.
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What are the tolerated variances in things such as grains of powder when brewing a plinking round? Is a .3 swing acceptable? I would think that you want it as close as possible to your desired weight, but knowing the Unfilow isn't perfect, and we really can't weigh EVERY throw, there will inevitably be some variance.
A-FIXER:
--- Quote ---but knowing the Unfilow isn't perfect, and we really can't weigh EVERY throw, there will inevitably be some variance.
--- End quote ---
Why not its part of the learning curve..... on pistol with a .45 .3 is enough to be concerned about. with a total of appx 3.6 grs of a certain type of powder.
A-FIXER:
--- Quote ---Throw powder, weigh, trickle if necessary
--- End quote ---
^^^This
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