Fat New VLD's
- Thread starter Terry
- Start date
Terry,
Go to page 56 in this string. Brian and Eric have an explanation here.
Go to page 56 in this string. Brian and Eric have an explanation here.
Alex Wheeler
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.2436" on the shank should never have passed QC IMO.
dmoran
Donovan Moran
Terry -
In my experience, dominate pressure ring bullets are fussy to neck tension. Where to say a 1/2-thou one way or the other can be a lot. Typically they like more tension and can be fussier to neck prep as well.
In my experience, fat bullets can be an issue with "short throats" because they make contact with the throat sooner. Seating depth can be a little fussier, and typically seem to like to be Off more then skinny bullets.
Myself I prefer bullets without much taper and smaller then .2434", and seem to be not as fussy (to me any how). But any will work, just that we have to adapt our procedures, make changes to neck prep, and tune them in different ways - IME.
Question: what brand/model ?
Donovan
In my experience, dominate pressure ring bullets are fussy to neck tension. Where to say a 1/2-thou one way or the other can be a lot. Typically they like more tension and can be fussier to neck prep as well.
In my experience, fat bullets can be an issue with "short throats" because they make contact with the throat sooner. Seating depth can be a little fussier, and typically seem to like to be Off more then skinny bullets.
Myself I prefer bullets without much taper and smaller then .2434", and seem to be not as fussy (to me any how). But any will work, just that we have to adapt our procedures, make changes to neck prep, and tune them in different ways - IME.
Question: what brand/model ?
Donovan
This has been a problem the past couple of years with some lots of bullets. That is why many are specking a .2438 instead of the usual .2435 on most reamers.
A fat pressure ring can be a very big problem if your reamer does not cut a throat that allows the pressure ring to live inside the sized portion of the neck. I had a 300 WSM that would hammer with the BIB 187 flat base -- pressure ring was .3087 -- but the Hugh Henriksen reamer was ground special for that bullet to allow the pressure ring to seat as described above.
A fat pressure ring that expands the neck only to exit the expanded portion during seating can also play nasty games with maintaining uniform neck tension -- especially .002 or less tension. If you cant maintain neck tension, then it is more difficult to maintain uniform bullet release, which means different pressure, which means playing games with ES and your vertical at long range. A good (and anything less than great here is horrible) throating reamer used correctly has a chance to solve your problem.
Annealing always helps whether the pressure ring is within or out of the sized portion of the case. A word to the wise learned long ago via my own mistakes: NEVER have a custom reamer ground without sending a dummy round with the bullet seated EXACTLY where you want it. Then you get what you want and any mistakes are with the reamer grinder and NOT you.
Jim Hardy
A fat pressure ring can be a very big problem if your reamer does not cut a throat that allows the pressure ring to live inside the sized portion of the neck. I had a 300 WSM that would hammer with the BIB 187 flat base -- pressure ring was .3087 -- but the Hugh Henriksen reamer was ground special for that bullet to allow the pressure ring to seat as described above.
A fat pressure ring that expands the neck only to exit the expanded portion during seating can also play nasty games with maintaining uniform neck tension -- especially .002 or less tension. If you cant maintain neck tension, then it is more difficult to maintain uniform bullet release, which means different pressure, which means playing games with ES and your vertical at long range. A good (and anything less than great here is horrible) throating reamer used correctly has a chance to solve your problem.
Annealing always helps whether the pressure ring is within or out of the sized portion of the case. A word to the wise learned long ago via my own mistakes: NEVER have a custom reamer ground without sending a dummy round with the bullet seated EXACTLY where you want it. Then you get what you want and any mistakes are with the reamer grinder and NOT you.
Jim Hardy
I got a new 500 ct box of 105 VLD and loaded the same load I been shooting for 800 rounds,,same powder primers brass and rifle,,first shot was bad news,,the Stiller held but it took both hands to open bolt,,after prying case from bolt the primer fell out in my hand,,
I know this is on me for not workin up with new lot of bullets,,according to my mics the bullet in front of boattail measures .2437,,backed off 2 full grs and at 34.4 I am back to same speeds I was at 36.0 H4350 from the BRDX
now hopefully they shoot as good as the other lot,,
should half a thousandth cause a good working load go to this,,everything else was exactly the same
I know this is on me for not workin up with new lot of bullets,,according to my mics the bullet in front of boattail measures .2437,,backed off 2 full grs and at 34.4 I am back to same speeds I was at 36.0 H4350 from the BRDX
now hopefully they shoot as good as the other lot,,
should half a thousandth cause a good working load go to this,,everything else was exactly the same
Terry,
Page 56 in the RELOADING FORUM string. Sorry.
Page 56 in the RELOADING FORUM string. Sorry.
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