Bullet run out how much matters?

[Sixgun]

I too use Redding bushing dies and competition seating dies. A tip to lower run out, this may surprise you but after you seat the bullet, lower the ram so you can get your finger on the loaded round and rotate it one third and raise the ram, then do it again. It doesn't take long and then check your run out. Make a comparison with several rounds. I do this for my match loadings.

Wouldn't it be better to turn it 180 since the error can only be in one direction since its round?

 

[stifffingers]

Wouldn't it be better to turn it 180 since the error can only be in one direction since its round?

If it is the seating stem that is seating the bullet to one side, a 180 degree rotation will just push it the same amount in the opposite direction.

 

[chkunz]

If it is the seating stem that is seating the bullet to one side, a 180 degree rotation will just push it the same amount in the opposite direction.

This is an easy test to do if you would like to know.

 

[Ned Ludd]

If it is the seating stem that is seating the bullet to one side, a 180 degree rotation will just push it the same amount in the opposite direction.

Since it will already have a specific amount of runout (tilt) in one direction after the first stroke, the 2nd stroke 180 degrees around might just push it the exact same amount in the opposite direction, thereby squaring it up.

 

[Dusty Stevens]

If you have a seater causing runout- scrap it. Life is way too short to waste on the cheapest part of a loading setup thats the most likely to be right because its the easiest to get right. A chamber reamer, a cheap wilson blank and a halfway hobbyist gunsmith should be able to get that perfect- no heat treating involved! $55 and youre all set with one less worry

 

[snakepit]

So we now have a Navy test, how many sides does a ship have?

A ship has 4 sides: port, starboard, bow and stern.

 

[Sixgun]

Since it will already have a specific amount of runout (tilt) in one direction after the first stroke, the 2nd stroke 180 degrees around might just push it the exact same amount in the opposite direction, thereby squaring it up.

It's what I do for sizing and seating. It definately helps. For seating it's not enough to just turn it 180 though. I believe the bullet should be left long a couple thousandths on the first stroke then final depth on the second.

 

[Bart B.]

A ship has 4 sides: port, starboard, bow and stern.

You forgot topside, the opposite of below decks.

 

[Bart B.]

If it is as simple as a "grade school math formula", you can skip checking with your gun God, because it would be nothing more then a in general inclusive reference prediction. For a conclusive mathematics formula, it would have to be fairly complex, that would have to include both coefficients of friction of the case neck and bullet jacket material, as well as tensile strength input based on the amount of interference fit, and both neck wall thickness and hardness, in order to have any factual bases for predictions.

You've just revealed your ignorance of the facts that all those conditions contribute to the force needed to push a bullet forward in a case neck. Don't over complicate simple stuff. I think you're smart enough to do that.

Do you have a lot of scar tissue throughout your body?

Use a hand scale and cartridge clamps to pull it out an amount equal buller jump to the rifling. Or completely out which is the industry standard.

 

[Bart B.]

2) Some amount of verbiage about the extractor/ejector pushing the base of the case off center.

This probably comes from Heresy 101-----straight from the Witchcraft book----but----why not

I measured that actually happening. My Mauser type claw extractors push case rims against bolt face shrouds or case body back ends against chamber walls when bolts are in battery on a chambered case. Some of us have the wherewithal to do that. Others can easily figure it out. The naysayers and disbelievers are something else.

 

[JFrank]

If you have a seater causing runout- scrap it. Life is way too short to waste on the cheapest part of a loading setup thats the most likely to be right because its the easiest to get right. A chamber reamer, a cheap wilson blank and a halfway hobbyist gunsmith should be able to get that perfect- no heat treating involved! $55 and youre all set with one less worry

Agreed "
This ain't Rocket Surgery your just seating a Bullet.

 

[Dusty Stevens]

I measured that actually happening. My Mauser type claw extractors push case rims against bolt face shrouds or case body back ends against chamber walls when bolts are in battery on a chambered case. Some of us have the wherewithal to do that. Others can easily figure it out. The naysayers and disbelievers are something else.

Thats gotta be a pretty sloppy chamber. I agree the mauser claw is strong and can push a case but in reality the mausingfield is the only action used in modern times that has that extractor and nobody in the game theyre used in cares about the runout issues. It just doesnt matter that much

 

[Uncle Ed]

A ship has 4 sides: port, starboard, bow and stern.

A ship has seven sides.
1. Top side
2. Bottom side
3. Port side
4. Starboard side
5. Inside
6. Outside
7 And Come along side

P.S. My dad was a retired Navy Chief, a Airedale, and always said if your stripes are not green your a nobody.

 

[Bart B.]

Thats gotta be a pretty sloppy chamber. I agree the mauser claw is strong and can push a case but in reality the mausingfield is the only action used in modern times that has that extractor and nobody in the game theyre used in cares about the runout issues. It just doesnt matter that much

Chanbers are SAAM minimum spec, not sloppy.

I don't think it matters of there's .0001" or .0100" clearance from pressure ring to chamber wall. All extractors push case heads sideways. Unless there is zero clearance from case rim to bolt shroud.

I agree, rurnout ain't a big issue. There's bigger fish to fry. 1% of bullet diameter is good to go if measured the right way.

 

[Bart B.]

A ship has seven sides.
1. Top side
2. Bottom side
3. Port side
4. Starboard side
5. Inside
6. Outside
7 And Come along side

P.S. My dad was a retired Navy Chief, a Airedale, and always said if your stripes are not green your a nobody.

Does he or you know what side was renamed a few centuries ago.? "Come alongside" is what ships do with another, not a side of one by itself.

"Outside" has been called "topside" and "inside" has been called "below decks" for centuries. Those in and out versions are land lubber words as I learned in boot camp.

You forgot a couple sides that are always there and two more that are sometimes there.

If your Dad knows what they are, he's as good as the black shoes that help make brown shoe sailors their equal.

 

[Uncle Ed]

Does he or you know what side was renamed a few centuries ago.? "Come alongside" is what ships do with another, not a side of one by itself.

You forgot a couple sides that are always there and two more that are sometimes there.

If your Dad knows what they are, he's as good as the black shoes that help make brown shoe sailors their equal.

I was hoping you fell overboard and were eaten by sharks.

 

[Bart B.]

I was hoping you fell overboard and were eaten by sharks.

Don't feel bad about coming in second place in this ship based chat between the two of us. I finished next to last.

I spent 2.5 years aboard USS Constellation CVA-64 starting in 1960 with the nucleus crew at the Brooklyn Navy Yard during the final year of construction through 2 months of her first deployment in 1963. I was part of her main battery weapon system. I know brown shoe sailors. Wore them several times 2 years later at a training command then on a destroyer leader, DLG-29.

 

[JFrank]

I don't think either one of ya have ever been off shore.

 

[bigstick6017555]

personally, i wish they would take their differences else where, i come here to hear opinions on guns and accuracy. not their petty differences of what they were or were not at some point in time.

 

[snakepit]

P.S. My dad was a retired Navy Chief, a Airedale, and always said if your stripes are not green your a nobody.

The green stripes are for Aviation Enlisted E-1 to E-3. From E-4 to E-9 they are red for all ratings unless you have 12 straight years of good service and then they are gold. Like your dad I also was a Airedale/Airdale.