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Load by volume or by weight? |
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supertool73
Optics God Superstool Joined: January/03/2008 Status: Offline Points: 11814 |
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Very true, very true
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Lifetime warranty and excellent customer service don't mean a thing when your gun fails during a zombie attack.
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powderburn
Optics Journeyman Joined: April/09/2010 Status: Offline Points: 345 |
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let me begin by saying I am not a bench rest shooter and I reload mainly for economy with acceptable hunting accuracy. I have been reloading for over 40 years and have tried a lot of different approaches. I pretty much throw all of my charges these days using a simple set of Lee scoops. Only when I am loading to near max loading then I will scoop into a scale and trickle, but that is becoming less common in many of my rifles as I haven't found much difference in a 30-06 or 308 launching a 150 gr bullet at 2700 fps and one going 3000fps for the hunting I normally do.
I found that you can get very good accuracy using volume measuring in most of the medium and larger cases (22 hornet no). As an example I recently trade for a nice older 30-06 savage 110. I looked at my stash of components and found a can of AA4350 and a bunch of 150gr Remington pcl bullets. A quick look at my scoop chart and I found a load I thought would work. Got to the range rough zeroed the scope with some pulled bullets to get it on paper and settled down to work. The load averaged 2670fps with a high of 2711 and a low of 2638 for 10 shots . Of the 3 3shot groups I fired they averaged 1 1/8 inches. Load development ceased there and the scope was tweaked to shoot 1.5 inches high at 100 yds so now all I need is a deer to shoot at. That seems to be the norm for me using the scoops. I find it easy to match or beat factory loads and that is fine with me. it seems I can always get a silver dollar sized and usually less sized group just scooping the charge and given I don't shoot as much as I use to , my 58 year old eyesight and my jumpy nerves 1 " is about as good as I do with sporter weight rifle and a 4 x scope . |
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Dale Clifford
Optics Jedi Knight Joined: July/04/2004 Location: United States Status: Offline Points: 5087 |
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looks like this topic is making the rounds again. mostly you should do what ever makes you comfortable. If you don't think your Dillon can throw consistent charges, weigh them, but don't let those little things like checking your balance against a weight standard, or air currents change your mind. Or if you are one of those reloader/shooters who thinks they have control over every event in the process from loading until the bullet strikes the target continue on thinking weighing is more "accurate". Accurate here means what happens on the target, not, the statistical data obtained from comparing apples and oranges. (actually they are very close, both fruits contain almost the same amount and kind of sugars, and fiber, in type and weight). It's called random error. This is introduced into events regardless of steps taken to avoid it. With shooting the event of reloading, the event of conditions that day, the event of your blood sugar being low introduces random error exponentially. Thus a slightly overcharge may be offset be slightly tighter brass neck on one case, or the round actually shoots to the left, but your low blood sugar pulled it right for a bullseye. A low SD at the chrono doesn't guarantee good groups, while there is a degree of correlation so does adjusting the scope properly. Do you eat doughnuts while you shoot.. ??? Better check there sugar weight before shooting.
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8shots
Optics Jedi Knight Lord Of The Flies Joined: March/14/2007 Location: South Africa Status: Offline Points: 6253 |
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Hi Dale,
Long time no hear (or should I say no post!!) Like always great pearls of wisdom...I have started eating donuts whilst shooting...works like a charm
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Dale Clifford
Optics Jedi Knight Joined: July/04/2004 Location: United States Status: Offline Points: 5087 |
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Its best to buy the doughnuts by the case with the same lot number so the type and weight of the sugar is uniform throughout the same batch. If one shoots a lot, then some special runs can be made by the local bakery and delivered just before shooting to prevent the hygroscopic effect of sugar pulling the water out of the air and changing the weight.
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I love little league baseball-- it keeps the kids out of the house
Yogi Bera |
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BeltFed
Optics Retard Joined: February/12/2008 Location: Ky Status: Offline Points: 22284 |
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I don't think it matters that much. I get my doughnuts where ever they're the cheapest, so that means I'm getting them from different bakeries and different levels of freshness, and I can still keep my groups at or under MOA. However if any of the doughnuts have any green on them other than sprinkles, then I toss the whole batch.
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Life's concerns should be about the 120lb pack your trying to get to the top of the mountain, and not the rock in your boot.
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8shots
Optics Jedi Knight Lord Of The Flies Joined: March/14/2007 Location: South Africa Status: Offline Points: 6253 |
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To both of you
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SEMO Shooter
Optics Apprentice Joined: January/06/2013 Location: SE Missouri Status: Offline Points: 199 |
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Will custard or fruit filled doughnuts be sufficient? I like them better, and the drag coefficient is less when swallowing if you don't have coffee or milk.
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BeltFed
Optics Retard Joined: February/12/2008 Location: Ky Status: Offline Points: 22284 |
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I find that these actually shrink group size.
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Life's concerns should be about the 120lb pack your trying to get to the top of the mountain, and not the rock in your boot.
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BeltFed
Optics Retard Joined: February/12/2008 Location: Ky Status: Offline Points: 22284 |
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In all seriousness, I have tried weighing each charge and dumping each charge from a powder drop, and I can't tell the difference in group size.
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Life's concerns should be about the 120lb pack your trying to get to the top of the mountain, and not the rock in your boot.
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Alan Robertson
Optics Master Joined: October/31/2009 Location: Oklahoma Status: Offline Points: 1763 |
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a) Barrel harmonics- bullet would exit barrel at slightly different point in regards to barrel harmonics/ minimum vibrational node point, thus slight p.o.i. change b) Velocity/Recoil- Bullet exits barrel at slightly different velocity (and attendant recoil variance,) thus slight p.o.i. change |
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"Garg'n uair dhuisgear"
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