Neck tension

[DocDoc]

The ignore button is sure nice for Fguffy types.

 

[Rat Rifle]

The ignore button is sure nice for Fguffy types.

Please explain.

 

[Rat Rifle]

How do you know which bullet is the flier at 600 yards during a record string ? Are you having a partner spot for you?

At this point in time, I don’t know which one was the flyer, and I think that is true for most shooters I talk to. For one match, I colored bullets with 5 different mj markers, but the colors didn’t show up on the target. Later I learned about the dabbing with alcohol trick.

I DQed in a 1,000yd LG relay with 4 on. The condition changed drastically right after I chambered a round. Instead of ejecting it, I left it in until the condition settled, it cooked and was off the paper. A mental error. My shooting mentor was kind enough to point this out to Me LOL.

 

[Devin Wiggett]

Neck tension is kind of a black art, in involves deminision, friction, neck thickness, and brass properties. For example two pieces of identical brass, one SS pin cleaned and the other not cleaned will have different tension with the same neck diameter. So as previously mentioned test your methods and find what works for your procedure.

 

[Rat Rifle]

I shoot LG and HG (10 shots) and have not once cooked a round enough to DQ.

Perhaps your round didn't cook at all rather the conditions continued down range and sent your round wild.

You are probably right on. The conditions that day were BRUTAL, and totally unpredictable. Better and more experienced shooters/loaders than Me DQed that day.

 

[Dave M.]

At this point in time, I don’t know which one was the flyer, and I think that is true for most shooters I talk to. For one match, I colored bullets with 5 different mj markers, but the colors didn’t show up on the target. Later I learned about the dabbing with alcohol trick.

I DQed in a 1,000yd LG relay with 4 on. The condition changed drastically right after I chambered a round. Instead of ejecting it, I left it in until the condition settled, it cooked and was off the paper. A mental error. My shooting mentor was kind enough to point this out to Me LOL.

I think you need a new mentor. There is NO WAY you could “cook” a round enough to cause it to rise enough off the target. I’ve shot many 1000 yard competitions and I’ve been known to leave a round in the chamber for as long as 3-4 minutes while waiting for the right wind. And that next shot is always a 10 or an X.
Dave

 

[Dave M.]

Neck tension is kind of a black art, in involves deminision, friction, neck thickness, and brass properties. For example two pieces of identical brass, one SS pin cleaned and the other not cleaned will have different tension with the same neck diameter. So as previously mentioned test your methods and find what works for your procedure.

I don’t know of a single winning 1000 yard F class shooter that cleans their brass with SS pins. You want to leave that carbon buildup on the inside of the neck. The pins take it off.
dave

 

[KMart]

Need to clairify. I mis-labeled the thread and was not clear on what I am asking. My question intended to relate to shoulder bump not neck tension.

Brilliant! - thanks

 

[abersfelderami]

Need to clairify. I mis-labeled the thread and was not clear on what I am asking. My question intended to relate to shoulder bump not neck tension.

Better late than never.

 

[ELR LVR]

I have found as long as your neck tensions is "Consistent" to be most important.
but usually no more than .003"
That also is dependent upon how far your bullet is seated in the neck.
IE: you may only have .002" neck tension but this is not the same amount of tension to overcome for full bullet release if it is seated .220" into a case compared another load that might be .100" deep into a case.
The load seated less only .100" into a case may like .003" neck tension better than .002"
Some of my bullets VLD's are only seated .070" deep with .002" neck tension. But are jammed into the lands.
So there are many variables to weed out as many have said....."For your particular rifle"
....until each variable becomes a known constant.
But to make it easy as a starting point with annealed brass that has been turned...I'd go with .003"

 

[bozo699]

I don’t know of a single winning 1000 yard F class shooter that cleans their brass with SS pins. You want to leave that carbon buildup on the inside of the neck. The pins take it off.
dave

^^^^^^^
AMEM Brother!…..
Wayne

 

[newbieshooter]

I don’t know of a single winning 1000 yard F class shooter that cleans their brass with SS pins. You want to leave that carbon buildup on the inside of the neck. The pins take it off.
dave

David's done well tumbling with SS pins.

Case Neck Lube - Bullet Seating

My goal is to spend the most amount of time on the range and the least amount of time reloading. In my pursuit of achieving the greatest level of precision and repeatability, I have been testing which reloading steps provide the greatest benefit versus which ones just take time. IMO, lubing...

forum.accurateshooter.com

David's reloading room:

Team Lapua-Brux-Borden — Big Winners at Berger SW Nationals « Daily Bulletin

Dominators -- that's what these blue-shirted guys were at the 2020 Berger Southwest Nationals (SWN). For the third straight year, Team Lapua-Brux-Borden won the coveted F-Open Team Grand Aggregate award at the Berger Southwest Nationals, finishing with a score of 2584-160X (out of a possible 2600).

bulletin.accurateshooter.com

Report from F-Class Nationals in Arizona — LR Team Results « Daily Bulletin

Yesterday was the 1000-yard Team Match Day at the F-Class Nationals in Phoeniz Arizona. It was also Halloween, and there were some very creative costumes on display at the Ben Avery Shooting Facility.

bulletin.accurateshooter.com

 

[Dave M.]

^^^^^^^
AMEM Brother!…..
Wayne

People put too much time and effort into making their brass shiny. It has ZERO positive effects on accuracy. My keys after firing brass are as follows:
1. Anneal after every firing
2. Full length size with bushing
3. Crushed walnut shell tumble for 1HR max
4. Trim to length (every other firing)
5. Minimal inside and outside neck chamfer
6. Deprime
7. Blow out with mild compressor air
8. Reprime by hand
9. Powder charge
10. Seat Bullets using LE Wilson seater, K&M Arbor press, and monitor press in force for anomalies

 

[Dave M.]

David's done well tumbling with SS pins.

Case Neck Lube - Bullet Seating

My goal is to spend the most amount of time on the range and the least amount of time reloading. In my pursuit of achieving the greatest level of precision and repeatability, I have been testing which reloading steps provide the greatest benefit versus which ones just take time. IMO, lubing...

forum.accurateshooter.com

David's reloading room:

Team Lapua-Brux-Borden — Big Winners at Berger SW Nationals « Daily Bulletin

Dominators -- that's what these blue-shirted guys were at the 2020 Berger Southwest Nationals (SWN). For the third straight year, Team Lapua-Brux-Borden won the coveted F-Open Team Grand Aggregate award at the Berger Southwest Nationals, finishing with a score of 2584-160X (out of a possible 2600).

bulletin.accurateshooter.com

Report from F-Class Nationals in Arizona — LR Team Results « Daily Bulletin

Yesterday was the 1000-yard Team Match Day at the F-Class Nationals in Phoeniz Arizona. It was also Halloween, and there were some very creative costumes on display at the Ben Avery Shooting Facility.

bulletin.accurateshooter.com

David, also treats the necks with graphite and uses Bullets coated with HBN.
Dave

 

[Dave M.]

David, also treats the necks with graphite and uses Bullets coated with HBN.
Dave

Sorry about that, I thought you were talking about David Tubb.

 

[bozo699]

People put too much time and effort into making their brass shiny. It has ZERO positive effects on accuracy. My keys after firing brass are as follows:
1. Anneal after every firing
2. Full length size with bushing
3. Crushed walnut shell tumble for 1HR max
4. Trim to length (every other firing)
5. Minimal inside and outside neck chamfer
6. Deprime
7. Blow out with mild compressor air
8. Reprime by hand
9. Powder charge
10. Seat Bullets using LE Wilson seater, K&M Arbor press, and monitor press in force for anomalies

Dave,
Our regime is almost identical!…. I cringe every time I see a post where someone is ultrasonic cleaning or ss pins!…. Shiny brass don’t win matches!… load development and case prep!
Wayne

 

[Webster]

A little off topic but what the Hell ever became of Fguffy ? Googy as he was ?

I may have scared him off with my picture of a head space gauge. Someone said he is active on another website.

 

[Shooter13]

astly, I’ve recently found higher neck tension provides excellent and repeatable ignition and accuracy (0.004” plus)
Dave

For what? A bolt or AR?

 

[Dave M.]

For what? A bolt or AR?

F-open class bolt guns

 

[Firearmsunlimited]

Oh but it does.

The reason why it matters is that if you use very light neck tension then seat the bullet for any depth resulting in a hard jam the case will likely not hold the bullet in place but be moved by the lands. So your true seating depth might not be what you thought it was.

If you are only touching the lands or jumping your bullet then a light tension wouldn't matter as far as that issue is concerned.

If you have very light NT and the round is chambered and jammed deep enough and then you try to eject that round without firing - maybe you didn't size your brass correctly and it won't seat in the chamber, or you are in a match and they called cease fire, or a simple misfire, etc., then when you eject that case you will end up with a pulled bullet and a mess with your powder.

All I can tell you is to go to a national benchrest match and have one of the top shooter explain to you the mechanics of why they sometimes use a "deep jam" with light neck tension. I have seen Lester Bruno shoot a 25 grand jam. Clearly it would be impossible to jam a bullet into the lands that far. The intension is to in fact have the bullet slide back into the case neck.