Bullet and primer sealer recipe- does it add up?

[Jarhead]

All,

I have managed to recreate the bullet and primer sealant that was always a part of military ammo.

In parallel discussion, my High School algebra teacher taught me about mathematical equality.

So happy to share the recipe that works, but I need some help why the maths don't add up....This is breaking the fundamental algebraic rule!

You have to thin the lacquer down a lot to get it to flow into the gaps. I cut the brush tip at an 80 deg angle (or replace it with 2mm whipper-sniper line when you destroy the brush) so that there is a very small contact surface with the round. When you get the very thin tip into the gap, the sealer just flows right in. It takes a few rounds to get the right amount of sealer on the brush, but too much sealer can be easily wiped off until you get the knack......

Once the thinners dry out, there is so little sealant left I doubt you will see any in or on the gun when cleaning it.

sealer.png (405.69 KiB) Viewed 2949 times

And the finished product....

IMG-2283.JPG (1.68 MiB) Viewed 2949 times

IMG-2282.JPG (1.69 MiB) Viewed 2949 times

I will pull them out in 20 years time and see if they hit 2660 fps as a final test.......

[Oldbloke]

Always knew it was laquer of some type. Very simple


Where did u get the recipee?

Why bother?

[Jarhead]

Oldbloke,

"Where did u get the recipee?"

In this interests of protecting the identity of the individual who used to work for the company that makes this stuff, I am gonna openly lie to you and say trial and error.

"Why bother?"

Dunno. Bored. Covid impacts.

I wish I could say it is to effectively seal my long term storage ammo. But it's not, .....sigh.....This was supposed to be my semi retirement year off to travel. Instead I make up crap like this to do for fun and shoot with a pretty cool Qantas pilot who also has a lot of free time on his hands. Clays through the week, long range rifle on Saturday and pistol on every other Sunday. I reload ammo when I feel like it.

[TassieTiger]

Is there any sort of comparison done between non sealed and sealed ammo re longevity ?
I’ve often wondered re moisture ingress - but I honestly thought the sealing edge of the primer would equate to an air tight seal - no ? I should soak a round and pull it after a week I guess - would be interesting.

As far as the maths - yeah, it’s pretty unbelievable...mix a couple cheap chemicals and magic lol - 5000% mark up.

[Oldbloke]

Re ammo life.
I recently fired a few 3006 rounds I loaded at least 12 yrs ago. They went bang, no probs. Ammo lasts yonks

[Jarhead]

Oldbloke,

Did you do the semi-submerged run up the beach from an landing craft (like in Saving Private Ryan) before letting the 30-06's off? That would be the real test.......

[Oldbloke]

Oldbloke,

Did you do the semi-submerged run up the beach from an landing craft (like in Saving Private Ryan) before letting the 30-06's off? That would be the real test.......

I don't normally do that these days. But if that floats your boat. Lol

[marksman]

Is there any sort of comparison done between non sealed and sealed ammo re longevity ?
I’ve often wondered re moisture ingress - but I honestly thought the sealing edge of the primer would equate to an air tight seal - no ? I should soak a round and pull it after a week I guess - would be interesting.

As far as the maths - yeah, it’s pretty unbelievable...mix a couple cheap chemicals and magic lol - 5000% mark up.

yes there has been, l do not have the info on hand Tassie as l'm being quick before l am called for dinner, do not upset the cook
what l recall is that the tests showed added accuracy because of a more consistent bullet release,
we all know about cold welding bullets phenomenon that can be a reason for a drop in accuracy with ammo that has been stored for quite some time
so the theory is that by using a sealant that produces an accurate load you wont have these problems caused by the cold welding
test your old ammo and push the bullet into the case a tad, you will hear a crack noise, cold weld
its why some comp shooters who reload before a match will seat long and seat to the exact size on the day of the match so the release pressure is the same

[TassieTiger]

^ thank you ob1knob. Makes sense...the things you don’t really think of until someone points it out

[Skinna]

lol
I thought you were calling someone called "ob" a Knob for a moment there.
lol
sorry

[TassieTiger]

https://m.youtube.com/watch?v=5cc_h5Ghuj4

“War stars, you must Quote learn”

[marksman]

^ thank you ob1knob. Makes sense...the things you don’t really think of until someone points it out

yes its very good advise to never upset the cook

[Jarhead]

I let 5 of them fly today as a warm up before another load development session.

Worked great and as accurate as the rest of them. Well, 3 of them were. I thought I returned the scope to zero after shooting at 800 meters last weekend ......the first two rounds went AWOL as a result.


When I cleaned up this afternoon I found no sealer residue in the throat and the tiniest bit as a circle on the bolt face. It was less than the standard powder residue so this stuff passes the sniff check......