too much runout

[GW Hunter]

With my last batch of 20 reloads I had an issue with my seater, as I have quite a few rounds with >.006 in runout. The case necks on these are at <.002. Can these bullets be pulled and then reseated? Or do I need to bite the bullet (no pun intended...) and shoot them and start over?

 

[flashhole]

What kind of seat die are you using that induces that much runout?

 

[GW Hunter]

Forster ultra seater. It was a compressed load and I'm sure I damaged the stem halfway through the process. I won't do that again, but wonder if the bullets can be saved and then reseated in the same cases. Or will the brass have some sort of memory from the bullet being seated not perfectly straight the first time?

 

[shawnb]

Try rotating 1/3 turn at a time and run them through the die once at each rotation. Ive found this to help. But ive also stopped checking runout and just shoot. Ive stopped using my runout gauge years ago and havent gad any issues

 

[bigedp51]

What make and type sizing die are you using.

A bushing die can induce neck runout when it reduces the neck diameter .004 or more. And most factory chambers with let the neck expand more than .004.

 

[dok7mm]

The micrometer seaters are not made to consistently seat compressed loads. Try vibrating filled cases to increase room for seating, reduce charge or change powders, or go back to a standard seater.

Compressed loads can also miraculously change the true seating depth of your rounds, not good for consistent accuracy.

Also, what bigedp51 said.

 

[YZ-80]

I'd just correct them to .002" or less on a concentricity gage if you got one. But if it's only 20 rounds maybe just shoot them and see what 'cha get.

Usually, if I decide to pull them in a scenario like this I just remove the de-capping pin from the die, leaving the expander ball in place and run them back through for consistent neck tension.

 

[GW Hunter]

I do use a bushing die and have had no real issues with the runout until the seating die died on me. I do vibrate the cases and the seating depth does stay consistent (the case is at 101%). I will use a standard seater on my compressed loads from now on. I will probably just pull the bullets and start over. Over the years I have tried the faster powders like 4895 and 4350 (both brands) to try to get a bit more room in the case to avoid the compressed loads, but my 7mm weatherby didn't start producing acceptable numbers (3250-3350'/sec and 1/2"-3/4" MOA with 140-150gr TTSX) until I moved to H4831 and H1000 and with max+ loads at that... It likes what it likes... As usual, thanks for the replies...

 

[bigedp51]

Forster Blue Ribbon Powder Funnel with Long Drop Tube
https://www.midwayusa.com/product/1012691876?pid=293879



The longer the tube the greater the powder is compacted.

Drop Tube/ Funnel for 30BR
http://forum.accurateshooter.com/threads/drop-tube-funnel-for-30br.3985295/

 

[DUSTY NOGGIN]

(the case is at 101%)

id guess your slop at the body portion of the seater die is the same amount of runout you are seeing as a result ..

when running the press , i would stop at the first sound of crunch , measure coal , then finish the seating process , measure your difference

i suspect your are over 101% case fill ...

what data did you use to determine 101% and did that data use the barnes bullet that you are using ??

here is an old barnes 2007 pdf .. i think this data will be revised soon .. i would save this copy top your computer
https://www.barnesbullets.com/wp-content/uploads/2014/11/7mmWeatherbyMagnum.pdf

]but wonder if the bullets can be saved and then reseated in the same cases

the barnes should have stayed intact, id guess all run out transferred to the brass , but a jacketed bullet would have likely left a seater ring on the ogive

 

[GW Hunter]

id guess your slop at the body portion of the seater die is the same amount of runout you are seeing as a result ..

when running the press , i would stop at the first sound of crunch , measure coal , then finish the seating process , measure your difference

i suspect your are over 101% case fill ...

what data did you use to determine 101% and did that data use the barnes bullet that you are using ??

here is an old barnes 2007 pdf .. i think this data will be revised soon .. i would save this copy top your computer
https://www.barnesbullets.com/wp-content/uploads/2014/11/7mmWeatherbyMagnum.pdf


the barnes should have stayed intact, id guess all run out transferred to the brass , but a jacketed bullet would have likely left a seater ring on the ogive

I used Barnes load data for 150 gr TTSX and math ratios. 73 grains of H4831SC is 98% fill so 74.5 is 100.2%.... 101%.

 

[25WSM]

Use 4831sc. It doesn't fill the case as much. Or better yet try rl26. Speed will be excellent with the 26.

 

[DUSTY NOGGIN]

what is your jump ..
what is your oal to tip

do you have room there ??

maybe try another brand of brass to get more capacity ???

as said above .. the 4831sc will make some room .. but id bet thats what your already using as i havent seen a reg cut h4831 pound in a while

 

[Kansaswoodguy]

Shoot them I doubt you can see a difference on the target between .001" and .006" runout I can't