Bulk 22LR - Sorting by Weight and Rim Thickness for Accuracy

[FROGO207]

Something to add here. For a lot of years I have been the recipient of probably several K dud .22 rounds. I have taken them all apart to salvage the lead. I have noted many different levels of propellant that could be attributed to different brands or lots. Some have no priming compound or partial fill but have never observed any crumbling primer compound in any round. Most often I observed completely missing primer compound.

 

[LiveLife]

several K dud .22 rounds. I have taken them all apart ... Some have no priming compound or partial fill

My current stock of 22LR (20+ brands and weights in multiple lots) have been purchased this past year to up to 2 years.

I am happy to report the past 10,000+ rounds fired in 3 10/22s, GSG 1911 and ARs with CMMG 22LR conversion kits all have fired without misfires. Only recent misfires I have experienced has been during my 3000 round break-in of new 10/22 Collector #3 where Winchester M22 40 gr CPRN had several misfires per box of 500 (2 other Winchester bulk 555 and XPert fired without any misfires).

 

[Rembrandt]

What really got me thinking on this was when I got this box from a VERY serious shooter many years ago. I missed the opportunity to ever ask him what went into the decision (if any) to fill each individual hole in the box prior to a competition.

Use to shoot small bore silhouette matches, each bank consisted of 5 targets (5 Chickens, 5 Turkeys, 5 Pigs, 5 Rams) at various distances. When shooting at those targets you had to begin at the left and progressively move to the right. (ie: Chickens would be scored from left to right #1, #2, #3, #4, #5) If you shot and missed one of the targets, it had to be recorded on the score card as to which was a hit and which was a miss. There was 2.5 minutes to shoot the entire bank of targets, on average 30 seconds per animal. By having your ammo organized in a box (in rows of 5) it helped remind you which target was next in line. With four rows of animals, and five animals in each row, 20 rounds is required to shoot the match. These boxes were also used for other small bore competitions as well.

Some competitors used magazine fed rifles while others used single shot. Some matches would only allow one round in the rifle at a time. That's where having them organized in rows became helpful to the shooter.

 

[Slamfire]

That's what I was wondering.... well, two things.

What is the average - proportionally represented - percentage variable in other ammunitions of other calibers. Or more directly, what is the industry median average in variation presented as a percentage.

Then, which component represents the greater portion of the variation?

Interesting read..... weird and wonky but interesting none the less.

I have always wondered how much time went into comping rounds by national and international level shooters to the same end that you are pursuing.

What really got me thinking on this was when I got this box from a VERY serious shooter many years ago. I missed the opportunity to ever ask him what went into the decision (if any) to fill each individual hole in the box prior to a competition.

Todd.
View attachment 893168

This is one of my iron sight targets, and of course, I will claim I do this all the time



If you notice, there are four targets for record on the bottom. At fifty yards, even five shots per record per bull can be pretty hard to score. When there is a hole on the record target, the backer target will pretty much be a hole, and it gets hard to know if all five shots went were they were going. It would be impossible to score ten per bull at 50 yards,

So, for each stage, you fire 20 shots for record, unlimited sighters in the sighter bull, at the top of the target, and each match is 40 rounds. Therefore if you notice the freeland box has 20 rounds on the left, 20 rounds on the right, and your sighting sights in the middle.

The lady using this box, at a Regional, claimed her Grandfather used it at Camp Perry prior to WW2!

She put tape to block off the 20 shot sequences, and her sighting shots are off on the right.








This is a 1970s' box, and the plastic has been milled for a stop watch.



Time management is absolutely critical in Smallbore Prone. And there was no such thing as a cheap quartz timer back then. When Timex introduced their $125 quartz wrist watch, that was an absolute a bomb shell for the watch industry. Balance spring watches were doomed, all the tuning fork watches went unsold. You could understand, non prestige mechanical watches were going to the ash heap of history. The typical non Timex quartz watch was $2,000 and you can bet, none of that inventory sold once Timex brought their watch to the market. Adjusted for inflation, that $125 Timex would cost $771 in 2020 dollars!




You can spend $2,000,000 and more on prestige mechanical watches today, ( A Patek Philippe watch sold for $31 million) but they don't keep as good time as that $125 Timex in 1972.

 

[ApacheCoTodd]

This is one of my iron sight targets, and of course, I will claim I do this all the time

View attachment 893269

If you notice, there are four targets for record on the bottom. At fifty yards, even five shots per record per bull can be pretty hard to score. When there is a hole on the record target, the backer target will pretty much be a hole, and it gets hard to know if all five shots went were they were going. It would be impossible to score ten per bull at 50 yards,

So, for each stage, you fire 20 shots for record, unlimited sighters in the sighter bull, at the top of the target, and each match is 40 rounds. Therefore if you notice the freeland box has 20 rounds on the left, 20 rounds on the right, and your sighting sights in the middle.

The lady using this box, at a Regional, claimed her Grandfather used it at Camp Perry prior to WW2!

She put tape to block off the 20 shot sequences, and her sighting shots are off on the right.
View attachment 893271

View attachment 893272

View attachment 893273

View attachment 893274

This is a 1970s' box, and the plastic has been milled for a stop watch.

View attachment 893275

Time management is absolutely critical in Smallbore Prone. And there was no such thing as a cheap quartz timer back then. When Timex introduced their $125 quartz wrist watch, that was an absolute a bomb shell for the watch industry. Balance spring watches were doomed, all the tuning fork watches went unsold. You could understand, non prestige mechanical watches were going to the ash heap of history. The typical non Timex quartz watch was $2,000 and you can bet, none of that inventory sold once Timex brought their watch to the market. Adjusted for inflation, that $125 Timex would cost $771 in 2020 dollars!


View attachment 893276

You can spend $2,000,000 and more on prestige mechanical watches today, ( A Patek Philippe watch sold for $31 million) but they don't keep as good time as that $125 Timex in 1972.

I had no idea timing was so critical.
Those are great boxes - the format of mine makes so much more sense now.

Todd.

 

[Mal H]

This thread closed at the request of the OP.