Home Forums Reloading Big Game Rifles Bullet run-out help

The larger the case capacity the smaller the affect of accuracy from the amount of powder variatio

I sure wouldn't worry about a few rounds coming out over .003. I would either buy or make a Tru Tool ( They ain't that hard to make). Fix the problem rounds and go shoot. A person can waste a lot of time and spend money tryingto figure out and fix a problem that doesn't matter.

I think along time ago,Mathman posted that those rounds that had run out and were fixed did not shoot quite as good as rounds that that had no appreciable run out to begin with.

I am not a bench rest shooter and he is by far probably a better shooter than I, but I have no seen any difference.

I usually load a 100 rounds at a time.I may get 8-10 that surpass .003 run out. I fix those with my home made tool, mark them and usually use them as fouling shots when I go check my scope zero before hunting season.Since I only use 3-4 rounds to check zero and 1-3 rounds hunting out of that 100 I loaded,I run out of those fouling rounds long before I run out of the others.

One thing I tried was ammo straightened to a tolerance vs. ammo "naturally" within the same tolerance. I worked with .003" runout. What I found was if it took about .004" or more bending to get within tolerance, those cartridges didn't shoot groups as consistently small as naturally in tolerance ammo.

I believe you're referring to this:



The difference occurred when there was significant straightening to be done. Small amounts of straightening didn't screw things up.

Mathman, so those problem rounds started with .007 or more run-out?

Mackay,

If you wish to be schooled pay attention. A picture on the internet is worth a thousand lies. If I was truly a dishonest liar I'd post up some 100 yd target pics and claim they were all shot at 500. Nobody would know the difference. Its called deductive reasoning. There's a reason why I offered a real life demonstration. I proposed to offer tangible evidence that can be believed without any doubt yet everyone declined that offer. Yet everyone begs for pictures on the internet worth a thousand lies. When a man ask for a picture worth a thousand lies it is clear that mans motive is not to seek truth, or that man is uneducated and gullible. Its not the course of wisdom.

I will still post pictures for you as soon as I get the chance. I did make it back to Montana however there was still several feet of snow on the range I want to use. We got over 5' on the level in town this year. Almost broke records but was just shy.

Some fellas from Best of the West are going to be coming up later this year to shoot with some of us. When I post pics maybe I'll post my picture with some of them fellas in it. Or maybe I won't either.



Trystan

I've gone to the Redding body die, lee collet die, & Forster seater too. I have Forster benchrest full length sizers too but they don't give the straightness of the body/collet die setup.

I'd say your problem is mostly in your sizing, necks running out at .002" will result in more runout at the ogive because it's further out on the lever arm. I'd go back to the regular full length die, I suspect you'll get better numbers than that.

Mackay,

If you wish to be schooled pay attention. A picture on the internet is worth a thousand lies. If I was truly a dishonest liar I'd post up some 100 yd target pics and claim they were all shot at 500. Nobody would know the difference. Its called deductive reasoning. There's a reason why I offered a real life demonstration. I proposed to offer tangible evidence that can be believed without any doubt yet everyone declined that offer. Yet everyone begs for pictures on the internet worth a thousand lies. When a man ask for a picture worth a thousand lies it is clear that mans motive is not to seek truth, or that man is uneducated and gullible. Its not the course of wisdom.

I will still post pictures for you as soon as I get the chance. I did make it back to Montana however there was still several feet of snow on the range I want to use. We got over 5' on the level in town this year. Almost broke records but was just shy.

Some fellas from Best of the West are going to be coming up later this year to shoot with some of us. When I post pics maybe I'll post my picture with some of them fellas in it. Or maybe I won't either.



Trystan

A YouTube video it is then. I will post results in the near future. I will use 4 different rifles all in one session. I will conduct the test only once and if its a bad day so be it. I will simply title the thread "A day shooting at 500 yds" not intended as a pissing match or proving point. I will use a 223 tikka, a 270 tikka, a 6.5X55 tikka, and a Sako Finnbear. All 4 rifles completely factory with nothing more than trigger adjustment.

Popular request was for a YouTube video...I think I'd be a smuck if I didn't oblige.


Trystan

Most directions for run-out gauges suggest around .1 inch in front of the case mouth, but that can vary some depending on the ogive.

Trystan: You're right about still photos being worthless.

Isn't that why you said you'd do a youtube video?




So, do you still think you'd be a schmuck if you don't oblige?