Time to make the donuts....
- Thread starter AlNyhus
- Start date
AlNyhus
Silver $$ Contributor
Morning, Dave. The Hood .30 cores I've got here run right at .2598 on average. Due to the jackets taper, they don't plunk right down to the bottom of a J4 .925 or 1.00 jacket. But It's not unusual to drop them in and then discover that some have settled to the bottom on their own....a combination of air evacuating (possibly) and the lower edge of the core finally giving in to the core's weight. At least that's my thunks on it before my second cuppa this morning. I do think there's something to evacuating the air prior to seating the cores, so I don't mind the push-down step. I've heard about the 'Jumping Bean' syndrome but haven't seen it or talked to anyone that has. Urban Legend or fact....hard to say. I'd never say never.
The cores I make run right at .254 and they hit bottom. A lot of pain for no real gain, though. Domed cores would be the bomb, from a material flow standpoint. They might make the punch selection a bit less critical.
Your thoughts?
jackieschmidt
Gold $$ Contributor
Al, mine are exactly the same.
I have made my own cores with my die, they fall right in.
Charlie’s cores are just enough larger in diameter that many have to be pushed to the bottom. Some don’t.
They all seat up the same in the die.
Al, Just tig em up and grind em smooth
They'll drop right into the group, won't they?
Part of them may. I can visualize them starting to peel apart on
leaving the muzzle, then going in sideways in some other zip code. LOL
Mulligan
Silver $$ Contributor
I was at the range shooting some test loads a couple of years ago. Another range member pulled in and set up as I was finishing up. Before I left, I went down to say hello and visit with Dave a bit.
He said he had length sorted a wheelbarrow full of 180 Berger's and wanted to test a few.
He had a couple (2 I think???)bullets that were ~.030" shorter than the average length of the lot. And another weird bullet like the one Al posted a pic of that was of the shorter length.
He shot a group of the average length and then shot the couple of shorties...... then the weird one.
The shorties landed about 8-10 inches below the average group at 600 yards ...... less than 1/4" apart..... they wanted to group. He then shot the weird one that was short and had a fold like the one Al posted a pic of....... went right with the other two shorties. I was surprised.
CW
He said he had length sorted a wheelbarrow full of 180 Berger's and wanted to test a few.
He had a couple (2 I think???)bullets that were ~.030" shorter than the average length of the lot. And another weird bullet like the one Al posted a pic of that was of the shorter length.
He shot a group of the average length and then shot the couple of shorties...... then the weird one.
The shorties landed about 8-10 inches below the average group at 600 yards ...... less than 1/4" apart..... they wanted to group. He then shot the weird one that was short and had a fold like the one Al posted a pic of....... went right with the other two shorties. I was surprised.
CW
AlNyhus
Silver $$ Contributor
It's amazing how funky the tips can be and the bullets will still shoot well. Guy Chism told me to deform the tips and test them. So I cut some tips at angles with a dykes...they shot well. I told Guy what I 'found' and he said something I've never forgotten. "The back steers the front".
jackieschmidt
Gold $$ Contributor
Al, it looks like the force of the knock out pin exceeded the strength of the jacket.The benefit of a press with a lot of feed back...you know instantly when something feels janky.
I think you need to send those bullets to a metallurgical lab and get a complete work up on the material, including a tensile and yield average, along with sample of your bullet lube to a lab and get some real numbers on frictional coefficients when compressed in a enclosed die.
Next, get some bullets from the past made from jackets that never did this, have a complete chemical done on what could have been differ………
Oh, to heck with it. Sometimes this sort of stuff just happens
21PHX
Silver $$ Contributor
Wilbur Harris proved it to me 20+- years ago at Rachel’s Glen in Alabama.
AlNyhus
Silver $$ Contributor
The bullets from the Randy Robinett crafted carbide die got their first taste of competition last weekend at the Boone Valley Ikes range by Webster City, Iowa. Handicapped by a sub standard driver (egregious error at 100), the bullets drug me up and allowed the only 250 at 200 for the win. My stumble at 100 relegated me to 2nd in the Grand Agg. Nebraskan Mike Toby rose to the top of the Grand via 2 more X's.
Randy made a helluva great die. Thanks for all you've done for me, Randy!
Good shootin' -Al
Randy made a helluva great die.
Thanks for all you've done for me, Randy! Good shootin'
-Al
JoeDuke
Gold $$ Contributor
Very well done Al. You should be close to ready for the Nationals.The bullets from the Randy Robinett crafted carbide die got their first taste of competition last weekend at the Boone Valley Ikes range by Webster City, Iowa. Handicapped by a sub standard driver (egregious error at 100), the bullets drug me up and allowed the only 250 at 200 for the win. My stumble at 100 relegated me to 2nd in the Grand Agg. Nebraskan Mike Toby rose to the top of the Grand via 2 more X's.
Randy made a helluva great die.
Good shootin'
AlNyhus
Silver $$ Contributor
Joe, my Hunter gun shooting after an extended layoff shows just how perishable skills are with the 6X gun. I tried a new reticle at 100 with so-so results. At 200, it was going to be unworkable so a scope change prior to the 200 was in order. Made mistakes but shot enough decent targets to realize that there might be enough grey matter synapses firing to eventually make a decent showing in a Two Gun.
As to the Nationals, I hate the thought of missing one that so close. Family commitments and the format make it impossible for me, this season.
Good shootin'
-Al
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