Simple Answer: seat the bullet halfway into the case. Lower the ram, rotate the case 180* and seat.
Can you measure the run out of the neck right before the seating operation?
All of my shell holders are color coded for this exact reason.
Been doing this for years.
Dust covers for concentricity gauges. New business opportunity. I know I need 2.Good
Good evening. I can certainly make dust covers for your gauges. my website is https://doublenickelcovers.bigcartel.com send me a message via my website along with pictures and I would be happy to make them for you.Dust covers for concentricity gauges. New business opportunity. I know I need 2.
So, a loaded round with run-out can apparently be corrected with a concentric chamber.
That seems to be the common idea and it kind of makes sense that with that tight space it would align the bullet to whatever concentricity the chamber holds.
I use 6PPC made from 220 Russian but the methods I use could apply to any caliber (I think).
NO. Before the bullet leaves the “bore” it has to travel through how ever many inches of barrel, and has that much opportunity to become straight. Assuming there’s nothing wrong with the bore. But, I’m glad I don’t have to worry about runout, aren’t We guys
So true. Successful shooters running "no turn" necks in competition usually do so using great brass. But, since "no turn" necks allows the use of the cheapest of brass without the need to turn it, folks are often surprised with the huge runout they get when they are not using great brass. Because I turn the necks on everything I shoot (whether tight neck or not), I have seen some pretty crazy stuff in the good brass as well. When bad brass has been turned, whether for a "turn" or "no turn" neck, results on runout improves. But a bad die (or even the press) can make everything bad. One option is to just buy themselves quality inline dies and press if they want to take out many variables at one time. I turn my necks, knowing that my bullet will be centered in the neck. I check to see that the die is performing as it should. I jam my target loads, taking out much, if not all remaining frontal runout during bolt lock-up. When jumping, a bit more attention can help, but often not as much as the numbers might lead one to believe. One can often make inexpensive brass shoot pretty well, but brass prep is often key, including weight checking for outliers, reaming flash holes, turning necks and leveling primer pockets. A lot of work, but some of us enjoy doing that. For those not interested in any of that - best to buy the best brass one can afford. At least you have probability on your side.
No it can't. In the bullet jump, if it isn't concentric, it will hit one side of the lands and grooves first, disrupting consistency. Repeatability can't begin if you haven't got it.NO. Before the bullet leaves the “bore” it has to travel through how ever many inches of barrel, and has that much opportunity to become straight. Assuming there’s nothing wrong with the bore. But, I’m glad I don’t have to worry about runout, aren’t We guys
If the bullet were able to straighten itself out, I guess we can just toss the concentricity gauges, custom dies, neck turning gear and all that irrelevant equipment away? I'll keep mine.
Not so much an issue if using a Co-Ax though I suppose the jaws could get a bit of crud on them but even de-priming on the press, the drop tube into a jar system takes care of the debris that might normally contaminate a shell holder on a more conventional press.
The groove definitely gets some crud built up from dust n debris from repetitive use and have trouble shooted concentricity issues back to the shell houlder.
Absolutely incorrect.
I never use my press for seating bullets, I always use Wilson inline dies. But I have done it that way for years, in fact more often then not, I may turn it 2 or 3 times.
Yup. And the same with dies.
