Anyone with experience with a mold like this ? ?
- Thread starter Ben
- Start date
fiver
Well-Known Member
someone went all out here.
beveled front drive band, stepped check, and a DD band.
they were looking for some serious accuracy.
without measuring I bet the cog is close to 55/45 rear to front at the very most.
if you have an accurate 30 cal rifle with a good saami like chambering cut.
and not too much neck diameter slop I'd lay money on this one shooting groups that would make many jacketed bullets look bad.
if you have a hunting rifle.
the DD band, and the front drive band should help pull everything into alignment.
run your neck tension light, seat out so the drive band engages lightly, and even a Remington should do well if you keep the velocity's up long enough to make it to paper or animal.
beveled front drive band, stepped check, and a DD band.
they were looking for some serious accuracy.
without measuring I bet the cog is close to 55/45 rear to front at the very most.
if you have an accurate 30 cal rifle with a good saami like chambering cut.
and not too much neck diameter slop I'd lay money on this one shooting groups that would make many jacketed bullets look bad.
if you have a hunting rifle.
the DD band, and the front drive band should help pull everything into alignment.
run your neck tension light, seat out so the drive band engages lightly, and even a Remington should do well if you keep the velocity's up long enough to make it to paper or animal.
9
9.3X62AL
Guest
Full agreement with Lamar here. I had a pre-64 Win 70/30-06 that would likely have doted on such a design. (Nephew now owns it). Throat was a snug .311", grooves a tight .309" and lands were .301". My Lyman #311291 that corresponded to these specs closely shot quite well, but I'd bet this above design would do as well or better.
fiver
Well-Known Member
it's the ring at the front.
it engraves the rifling while the nose slides into the bore section,
if you mess with the alloy a bit here and there you'll actually see marks along the nose too.
you end up basically breech seating half the boolit and plugging up the throat area with the second half.
only sizing about .001 over groove diameter is all that's necessary here.
done right there is no slop anywhere.
your not exactly matching throat tapers and such, but your matching at least 60% of the bullet to the rifle.
and you can get away with some really soft alloy.
it engraves the rifling while the nose slides into the bore section,
if you mess with the alloy a bit here and there you'll actually see marks along the nose too.
you end up basically breech seating half the boolit and plugging up the throat area with the second half.
only sizing about .001 over groove diameter is all that's necessary here.
done right there is no slop anywhere.
your not exactly matching throat tapers and such, but your matching at least 60% of the bullet to the rifle.
and you can get away with some really soft alloy.
YES !
A
AMTom
Guest
Walt was the first to offer this, many years ago.
Just to make your head hurt a little more, I can put the ring, any size you want, any place on the bore rider you want, on any BR design in my catalog. It's shown on that design because that one was originally ordered that way. I have added it whenever requested to many other designs.
Never shot one, though.
Just to make your head hurt a little more, I can put the ring, any size you want, any place on the bore rider you want, on any BR design in my catalog. It's shown on that design because that one was originally ordered that way. I have added it whenever requested to many other designs.
Never shot one, though.
fiver
Well-Known Member
airc Lyman or ohaus had some double ring molds waay back when.
I recall some stories of those rings being filled with lube, that gave me the idea of very gently lubing the nose on some of my bore riders when trying for best accuracy.
it mostly seemed to help with the right amount and type of lube.
I recall some stories of those rings being filled with lube, that gave me the idea of very gently lubing the nose on some of my bore riders when trying for best accuracy.
it mostly seemed to help with the right amount and type of lube.