Lube grooves....

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desert deuce
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Re: Lube grooves....

Post by desert deuce »

SEMTAV WROTE:
I've heard tell that is sacrilege in some parts, kinda like duplex and smokeless !!
Yes, breech seating of a fixed cartridge is forbidden I hear at a certain range in Michigan. Apparently they view a breech seater as synonymous with a ball peen hammer and screw driver, or something along those lines.

May fit into that category of rules that discourage shooter participation outside of a select group. :roll:

However, when you look at what they elected and retain for a Governor perhaps anything is possible. :oops:

If the shoe fits, wear it. :mrgreen:
Sometimes you get the chicken, and sometimes you get the feathers!
Kurt
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Re: Lube grooves....

Post by Kurt »

JonnyV wrote: Thu Jul 22, 2021 6:54 am Kurt....those are all the same mold right? If so, we are seeing different degrees of obturation/shortening of the bullet? Looks like the softer alloys shorten and change up the nose profile quite a bit....

Would be very interesting to see the results of your tube test, I did read about it on here a few weeks ago, will have to search it up again.

Looks like your lube grooves have a bevel cut to them, is that right? Maybe some grooves shed the lube better than others..
Yes they were cast using the same mould, just different alloys.

The use of the plastic pipe and cardboard carpet tubes was a curiosity for seeing how much powder is unused using heavy compression for cleaner burns using the old Goex powder. I really came to the conclusion that it's not a hoter burn doing this but rather the unburned powder scraped the fouling out from the previous shot fired, but again this is just speculation, I just don't know.

Later on when I was making lube for lube wads under the PP bullets I found a lot of wads walking down range to paste the targets and I saw lube wads between the two card wads that looked like I could reuse them. All they had was the land cuts on the side and uncompressed. This made me use the pipe to collect the lube wads to see if I could work up a lube that would stay behind in the bore where it would do more good than laying on the ground unused and I found that the hard lube would also turn into a projectile that would penetrate cardboard and a layer of duct tape at the end of the 30' pipe covering the pipe end. Using a hard lube there would sometimes be two holes going through the cardboard.
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JonnyV
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Re: Lube grooves....

Post by JonnyV »

Looking at those bullets, seems like anything softer than the 18-1 deformed, and the softest ones deformed the most. The 30-1 looks like it could have come from a different mold altogether. That has to alter the BC...
Kurt
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Re: Lube grooves....

Post by Kurt »

Jonny,

The 1/18 has antimony in it.
The second from the right 1/16 is a lead tin alloy 1# tin 16# lead.
The reason a dog has so many friends is because he wags his tail instead of his tongue.

"Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery"Winston Churchill
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DAVE ROELLE
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Re: Lube grooves....

Post by DAVE ROELLE »

The most remarkable bullet pictures I remember Kurt posting were Paper Patched bullets that "stretched" upon being fired, I still havent a clue how that could happen 😳
Sorry to go off subject 😉
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mdeland
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Re: Lube grooves....

Post by mdeland »

Yeah those stretched bullets are a puzzlement to me as well. I think Kurt is playing a cruel joke on us unsophisticated types ! :lol:
My favorites are his gas cut bullets !
On the OAL or nose slumped bullets I still have to wonder if that happened at impact rather than in the barrel although the longer land tracks on the off side are pretty convincing.
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desert deuce
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Re: Lube grooves....

Post by desert deuce »

If results matter:

FYI, the rifleman that won the Steve Rhoades Memorial 1,000 yard World Championship
AND
the Dan Theodore Commemorative Ironman Match March 2021

Was shooting a Shiloh 45-70, BACO GG Money Bullets cast 1-12 alloy. :wink:
Sometimes you get the chicken, and sometimes you get the feathers!
Kurt
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Re: Lube grooves....

Post by Kurt »

DD.

If I was to shoot a match using a GG bullet it would also be hard, but one must take caution with a just lead tin alloy. Lead and tin makes a solder and it's the tin that causes the problem in the bore by the heat from the friction and the hot gas combined with some of the lube that contains animal fat acids that acts like a flux making that solder stick to the metal.
Try to solder anything, wire, copper, brass just using pure lead. :D

Use a patched bullet bore or groove diameter and this will eliminate that problem. :D
The reason a dog has so many friends is because he wags his tail instead of his tongue.

"Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery"Winston Churchill
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desert deuce
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Re: Lube grooves....

Post by desert deuce »

Kurt, what problem are you suggesting that needs to be eliminated?

Is the problem, in your view, the fact that it was a 45-70 with grease groove bullets that won both very difficult and highly contested matches?

If so, it sounds like you are trying to handicap the fellow :?

Why is that Kurt :?:
Sometimes you get the chicken, and sometimes you get the feathers!
Kurt
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Re: Lube grooves....

Post by Kurt »

DD,
I have shot GG at matches and I'm not trying to handicap any shooter.

I have found better options for the GG's than just lead and tin that tends to destroy the accuracy in hot/dry conditions.
I won't say because I don't want to handicap anyone. :)
We will talk about it some time face to face.
The reason a dog has so many friends is because he wags his tail instead of his tongue.

"Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery"Winston Churchill
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desert deuce
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Re: Lube grooves....

Post by desert deuce »

Kurt, have you been dippin' in the sour mash today ?
Sometimes you get the chicken, and sometimes you get the feathers!
Kurt
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Re: Lube grooves....

Post by Kurt »

I think you need to get out of the hot sun :?
The reason a dog has so many friends is because he wags his tail instead of his tongue.

"Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery"Winston Churchill
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desert deuce
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Re: Lube grooves....

Post by desert deuce »

Been Monsoon here for a week, past 48 hours pretty much rain all day and night. Helps clarify perception. :lol: :lol: :lol:
Which is probably what you are complaining about. :wink: That's OK, I understand, as do we all. :mrgreen:
Sometimes you get the chicken, and sometimes you get the feathers!
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