Erik Cortina

[LCazador]

Yup, just when you think you got it figured out, something comes along and disfigures it! !! LOL!!

 

[divingin]

Keeps the bullet from getting welded to the neck

I'd say to break the weld loose before shooting it, should it happen. Doesn't prevent it, takes care of the problem if it does occur.

I used to think it was something that took very specific conditions, but have changed that. I've had some rounds that "snapped" when adjusting depth, after having been loaded a couple of days prior. I've also had others, processed and loaded the same way, that were fine after months of sitting.

Bottom line: I have no idea what causes it.

 

[762willdo]

When seating bullets into a bare clean brass neck, you can actually be compressing air within the case and sealing it within... Then, later, travelling to different locations/altitudes, can produce changes in temperature and or changes in density altitude... This will cause pressure changes within the case. (pushing or pulling on the base of the bullet)....

Seat bullets long, then, seat to desired OAL just before shooting, is a great idea...

Alternatively, with a sharp angled pic, scratch a lateral relief inside the neck to allow air pressure to equalize so bullets don't move outward over time/ travel /temp or altitude...

This does NOT address bullets seated months or years prior.. only recent reloads...

Caveat... Just a concept that came to me while in my armchair, with a fine Canadian 12 Year Whisky in hand... Not proven.. Only concept...

You want split necks…..cause this is how you get spit necks……

 

[eschafer]

You want split necks…..cause this is how you get spit necks……

Very good point...

Rather, scratch a very fine relief onto the bullet bearing surface...

 

[No i deer]

I have some 190gr Atips welded in new brass..
There were turned,sized etc.
Case necks were bronze brushed and dry lubed before I used the neck 1.5 thousandths tension mandrel.
Broke my kinetic hammer on the first one..
Tried seating the bullet deeper too free it then use another hammer..
Still not budging..
Gotta get a hornday collet puller..
Never had this before...
Alot of competitive shooters load long then seat prior too the match..
In the past some used so little neck tension that bullets vibrate into the case and become loose from travelling from hours of driving..

 

[Dusty Stevens]

I have some 190gr Atips welded in new brass..
There were turned,sized etc.
Case necks were bronze brushed and dry lubed before I used the neck 1.5 thousandths tension mandrel.
Broke my kinetic hammer on the first one..
Tried seating the bullet deeper too free it then use another hammer..
Still not budging..
Gotta get a hornday collet puller..
Never had this before...
Alot of competitive shooters load long then seat prior too the match..
In the past some used so little neck tension that bullets vibrate into the case and become loose from travelling from hours of driving..

Ive never seen one when seated deeper wouldnt hammer out, even the old asphalt sealed ones. If you have to resort to a collet puller use those bullets for fireforming. It sucks to ruin such an expensive bullet.

 

[No i deer]

Ive never seen one when seated deeper wouldnt hammer out, even the old asphalt sealed ones. If you have to resort to a collet puller use those bullets for fireforming. It sucks to ruin such an expensive bullet.

Not sure why there so tightly held

 

[No i deer]

There isn't that many Atips still loaded and it maybe easier just too shoot them off..
Approx 25.
New powder was really slow and it took the load out of the node...
It needs over 1gr too get the speed back..
I pulled some 184s loaded at the same time for the same reason in older brass and they came apart really easy as they've always done..!!
Strange..!!

 

[46and2]

I just pulled 4 year old HBN bullets that had Imperial dry lube on the case necks, no welding. I was a little worried but they moved fine.

 

[boltfluter]

I shoot moly plated bullets, and never worry about loading in advance or cold weld.....

I shot some ammo the other day in my coyote gun that was loaded in 2013, shot an 1 1/2" at 200 yards.

I used to only load my 1K BR stuff a few days before the match. One year I had some left over from the previous year, and promptly shot a screamer target the 1st match of the year.

Since then, I load at my convenience.......

Exactly what I do. Never a cold welding problem, and no need to clean the rifle in the middle of coyote season. What's not to like!
Paul

 

[wbm]

Yup, just when you think you got it figured out, something comes along and disfigures it! !! LOL!!

Oh yeah....like the Buddy Hackett line in Mad Mad World..."we figured it 17 different ways and no matter how we figured it somebody don't like the way we figured it."

 

[Mega]

I don't know why the Topic is called "Erik Cortina" is it supposed to be some wake up call for him to respond but there is really no question posed. Is Erik still alive...???

I watched a video he did on Bench Source / AMP Annealers from some 12 months ago and I thought his presentation was very lacking in expert knowledge. To me he is just another shooter or am I missing something.

 

[jelenko]

In the OP, it seems like the question is being directed to Erik.

 

[Albany Mountain]

I have some Winchester match ammo from the late 50’s (wcc58) that I pull the bullets to switch out the mecurric primers. I did that last year so the ammo is 64 years old. Didn’t seem to be an issue because of welding. Shot some yesterday.

 

[Webster]

Yesterday I shot two rifles that the ammo had been loaded well over a year ago. Both rifles shot a different POI than they did when sighted in last year, one was a pretty drastic difference. I only had a few rounds left for both rifles, so I shot it all up with the intention of loading up another batch. After seeing the results, I wondered if it wasn't from a galvanic reaction. Today I ordered the Redding dry neck lube, it'll be next year before I can see if it makes any difference.

Wood stocks are constantly making tiny movements changing the bedding.

 

[justinp61]

Wood stocks are constantly making tiny movements changing the bedding.

Both rifles are in plastic stocks, I've should've been more clear.

 

[dcali]

Whats funny is ive found the carbon in the necks makes it worse. Ive pulled those after a year and the bullets are black in the neck and looked at with a loupe they are corroded and pitted. I always have loaded rounds left over after matches and since i dont reuse the cases ive seen them get real bad after a couple years. The carbon seems to accelerate the galvanic corrosion

This is not surprising. Graphite (and I would assume carbon residue) is pretty far away from brass and copper on the galvanic scale. Brass and copper are right next to each other, which isn't surprising because brass is largely copper. The further away the materials are, the more galvanic corrosion you get. It also wouldn't surprise me if there were electrolytes in the residue that accelerate things, but you'd have to ask a chemist about that.

 

[dcali]

I don't know why the Topic is called "Erik Cortina" is it supposed to be some wake up call for him to respond but there is really no question posed. Is Erik still alive...???

I watched a video he did on Bench Source / AMP Annealers from some 12 months ago and I thought his presentation was very lacking in expert knowledge. To me he is just another shooter or am I missing something.

At the end of the day, we're all "just another shooter" piecing together and sharing knowledge as we find it.

 

[ballisticdaddy]

Keeps the bullet from getting welded to the neck

Shot a match early this year with ammo loaded 10 months before, drove 1,100 miles going up and over the Rockies and ended up dropping only one point in all three relays. Welded or not they shot lights out for me!

 

[Ranger188]

I don't think Eric answers question here anymore.
I know at one point you could make an appointment with him.
I think he charged $50 for an hour for his expertise.....