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Old February 16, 2002, 01:11 AM   #1
RomaRana
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Variables for accuracy

I know that consistancy is the key to accuracy. But what are the variables that lead to this consistancy.

for example: Bullet concentricity(spelling), consistant powder,etc.

Could you please list them in order of importance. and why you put them in that order.
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Old February 16, 2002, 02:20 AM   #2
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Case capacity would be a biggie. Stick with one brand and if really picky, stick with one lot from that brand. Affects load density and therefore pressure.

Case length, if trimmed all to same length, tension on bullet more uniform

Uniform powder charges

Sort bullets by weight.

Seat primers consistantly.

Check primer flash holes for consistancy.

Some spin the loaded hulls to check for neck and bullet concentricity.

I'm sure there is more to come.

Sam
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Old February 16, 2002, 02:28 AM   #3
ryucasta
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Agreed
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Old February 16, 2002, 03:20 AM   #4
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It also helps to start out with an accurate firearm
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Old February 16, 2002, 03:54 AM   #5
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I bet it does
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Old February 16, 2002, 05:12 AM   #6
DAVID NANCARROW
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by the way, Roma-nice website!
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Old February 17, 2002, 10:54 PM   #7
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NOT SO FAST..............

If consistency is critical why do so many most accurate loads have such high extreme spreads?

I am still seeking the answer to accurate loads; at this point I like primer seating procedure and crimp.
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Old February 18, 2002, 01:10 AM   #8
C.R.Sam
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There is a nice meaty buck out there at 200 yards. You pick your target; neck, nose, shoulder or whatever. A 100 fps variation in your .308 isn't going to make enough difference in point of impact.

But it makes some difference.....enough to put you out of the money in a match.

With 99.999 percent of shooters, the biggest variable is the shooter.

I know one who fired a 400 40X in a match. That day, everything was consistant.

Sam
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Old February 18, 2002, 01:24 AM   #9
WESHOOT2
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HANDGUN ONLY

Not talking consistent impact velocity; talking accuracy.

Weird how separate these two components may be when talking handguns.

And, as always, ".....but NOT always....."
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Old February 18, 2002, 06:33 AM   #10
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These should help

Two sources...try Fred Sinclair's book "The Accurate Rifle" www.sinclairintl.com

Also, Varmint Al's website. Lots more info than can be put here.
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Old February 18, 2002, 04:21 PM   #11
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How about matching up cases, and bullets? Weigh each case and sort accordingly. Same w/ bullets. 5 complete rounds that components weigh the same should shoot a ragged hole. Also seating depth. Each gun is different. Some like 'em long and others shorter. Trial and error to find out what yours likes. I also make up loads in .1 increments. Max charge is usually not the most accurate. I know it takes a lot longer, but when you see a 5 shot ragged hole at 100 yds. You'll feel like "Da man"
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