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Bullet Pointing

jlow,
I am far to busy right now but I am going to point several different style and weight of bullets and see what the outcome is, I will either post my results on this thread if I can find it at that time or p.m you the results, thank's for the input.
Wayne.
 
Yes, I would be interested in your results as well.

Frankly, I am not happy with my own conclusions. It was not cheap to acquire the resources to do this and for a fact I pointed quite a few bullets before coming to this unhappy conclusion but I had to face the facts of my own findings but I can use them for fouling rounds. The fact that I can use the system for the 175s also soften the blow but….
 
Wow, I got side tracked with other things and had not looked at this recently! Looks like I opened up a can of worms! I must admit to be thrown a bit by the terminology and where the decimal points were. While I don't consider myself a master machinist, I have worked in engine building and also done some CNC machining. Glad to see all have ironed that part out! I doubt a bullet with two hundred and fifty thousandths runout would make it out to 600 yards. Anyway, all of the numbers mixup aside, this has netted a lot of good information. Like most times Wayne, you are going to be my go to guy when your test results are in. Please give us all your findings. Could very well save me some money! on the other hand, may force me to spend some ;D
 
timeout said:
Wow, I got side tracked with other things and had not looked at this recently! Looks like I opened up a can of worms! I must admit to be thrown a bit by the terminology and where the decimal points were. While I don't consider myself a master machinist, I have worked in engine building and also done some CNC machining. Glad to see all have ironed that part out! I doubt a bullet with two hundred and fifty thousandths runout would make it out to 600 yards. Anyway, all of the numbers mixup aside, this has netted a lot of good information. Like most times Wayne, you are going to be my go to guy when your test results are in. Please give us all your findings. Could very well save me some money! on the other hand, may force me to spend some ;D
timeout,
I don't know about that but thank you for the confidence anyway :) Like I said I have a lot of irons in the fire right now I am in the middle of calving out my cattle and I hve three rifles to get ready for my first match on march 24th and the ream just got here yesterday ::) so I will be a busy little bee just trying to make it to the match, I am sending my tipping die to a forum member so he can play around with it and I will pick it back up at the first match, in the afternoon after the match if conditions hold I will tip some bullets and try them or that is my plan anyway then when I get back home I will have almost a month to try more tipping I will let you know what I find anyway.
Wayne.
 
timeout said:
... two hundred and fifty thousandths runout....

Can someone please explain what that means? To me that implies 0.250" or 250 thousandths. I can't fathom how anyone could expect even to chamber a cartridge with run-out of that magnitude. 1/4". Aack.

0.0025" is two and one-half thousandths, a much more likely figure and entirely suitable for most shooting. I try to stay under 0.003" measured where the bullet's ogive contacts my barrel's lands after ignition.

It ought to be easy enough to key in the same numbers you see on a digital readout if that's what you're using. Dial indicators need a little more attention but even then commonly one or two ticks is 0.001" or 0.002", right?

If I'm missing something please enlighten me....
 
You are indeed missing something - you’ve got to read the post carefully….

The normal runout of the bullets as it comes from the factory was 0.00025”, but as I pointed them, this increased stepwise to 0.00065”. Please read all of the posts starting from my first post which is “Reply #8”.
 
I pointed thousands for 5 years and concluded it did not improve accuracy one bit. I stopped pointing the day I happened to take a before and after pointing base to ogive measurement....cheez, .003 difference! And .001 difference ramming so lightly I could barely feel the bullet meet the die.

POINTING ALTERS MORE THAN JUST THE POINT!

BUT, when I just uniformed the meplats I saw immediate accuracy improvements. Now I premeasure to toss out the odds, meplat trim the rest, and vibrate-tumble them for 2 hours to round the sharp edge on the tips.

And, avoid the trap of trimming meplats then pointing because pointing will deform the bullet shape as if never meplat-trimmed


Frank B.
 
Hi Frank,

Which meplate trimmer are you using? It could easily be my own technique (since it was new to me), but I had poor results with the Whidden. Suggestion of proper technique or better trimmer would be appreciated.
 
JLOW, I've used the Giraud powered trimmer for several years. Sure takes the effort out of trimming cases and bullets.

http://www.giraudtool.com/


Frank B.
 

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