Tips for Accuracy

Takes time but measure the projectile, have a # as ur set (keenly go of the bottom) . Than + or - the difference from the Over All Length. Is what your trying to do keep the seat depth consistent.

not a gunsmith but I think its worth the time some times.
 
weigh bullets seperate into groups. Buy powder/primers in large lots to insure consistant reloads and reduce margin of error. dont be afraid to try different lengths chare weights etc. to improve reloads. Lapua brass...
Andy
 
Accuracy is about consistancy. Make every effort to keep your ammo consistant and it will pay off at the target. If you can measure it or weigh it, it matters.

Check concentricity at each stage of the loading process. A fired case should have nearly no run out, and if runout becomes noticeable, you need to know at what stage that happens and take steps to correct it. Bump back the shoulder of your case with each resizing, but only enough to allow the bolt to close with minimum resistance. This can be approached easily with a set of Redding competition shell holders. Remove the shell holder retaining spring from your ram and replace with an "O" ring, as the retaining spring may have an adverse effect on concentricity. Remove the plunger from the bolt face as it may prevent the cartridge from being in line with the bore. Anneal brass with each firing, then resize. This is the best way to uniform bullet pull weight if you find it necessary to have bullet jump to the lands; I prefer to seat the bullet into the lands.
 
Boomer said:
"Accuracy is about consistancy. Make every effort to keep your ammo consistant and it will pay off at the target. If you can measure it or weigh it, it matters." Very true.

"Bump back the shoulder of your case with each resizing, but only enough to allow the bolt to close with minimum resistance." Good advice - pay attention belted mag shooters.

"...This can be approached easily with a set of Redding competition shell holders." This is accomplished very easily with any F/L resize die, assuming it resizes straight and using the same shell holder every time.

"Anneal brass with each firing, then resize." Unless you're loading to some insane pressure in a smaller bore with a big powder charge, annealing every firing is probably a chance to wreck more brass than extend it's life.

"This is the best way to uniform bullet pull weight if you find it necessary to have bullet jump to the lands; I prefer to seat the bullet into the lands." Seating into the lands is fine for BR and other competitive shooting, but a really poor idea for everything in the field. Ever get told to cease fire only to extract a round to get a magazine full of powder and a bullet stuck in the barrel? The best way to guarantee uniform pull weight is to use once-fireds after you've neck-sized/trimmed them. Now they're chamber specific and of even thickness.
Click to expand...

Best advice for starters is to read everything available - and find a copy of the Precision Shooting Reloading Guide. They can be found on amazon.com.
 
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I've been treating case mouths with special care lately.

Even if the case doesn't need trimming, I ALWAYS chamfer it (inside edge of the mouth) after it's FL or Neck sized. It's amazing how much brass comes off even with a light twist.

There are some other steps when it comes to cleaning the insides of the necks but I'll stay focused on the case mouth for now.

This is the last part of the case to touch the bullet as it is fired (and first part to touch the bullet when seating) - so, why not take some extra time here. Ever wonder why women are obsessed with their lips....ya....

One new step I've also added is to 'polish' the case mouth on a piece of maroon ScotchBrite. I place a small piece of ScotchBrite hand pad flat on the bench and give each case a few light pressure twists on is. It removes all small nicks in the mouth and makes it very smooth and uniform.

I don't have any empirical data to support my theory other than observing more consistent and smaller group sizes. I'll have to do an experiment to validate this.

Has anyone else done anything similar?
 
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