Neck tension
- Thread starter Firearmsunlimited
- Start date
Please explain.
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.
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 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.
I have a couple batches of brass turned and tuned for my LR BR, It took a bit of testing to get the bullet hold right enough to not tell the difference between the two batches on paper at 1 k. Recently batch #1 had been getting a few clickers that need attention so I have a back up die that reduces the .200 datum another thousandth so we will see if that helps.
A wise man told me that 1k shooting is an exercise in when not to shoot....
Dave M.
F-Open Class shooter (284 win, 6dasher, 6.5-7PRCW)
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.
F-Open Class shooter (284 win, 6dasher, 6.5-7PRCW)
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
Gold $$ Contributor
Brilliant! - thanks
Better late than never.
ELR LVR
Silver $$ Contributor
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"
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
Gold $$ Contributor
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).
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.
Last edited:
Dave M.
F-Open Class shooter (284 win, 6dasher, 6.5-7PRCW)
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.
F-Open Class shooter (284 win, 6dasher, 6.5-7PRCW)
David, also treats the necks with graphite and uses Bullets coated with HBN.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.
Dave
Dave M.
F-Open Class shooter (284 win, 6dasher, 6.5-7PRCW)
Sorry about that, I thought you were talking about David Tubb.
bozo699
Gold $$ Contributor
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
I may have scared him off with my picture of a head space gauge. Someone said he is active on another website.
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