Apollo wrote:From the text...
"Case Prep: He thought “tuning” a case was one of the most critical pieces of small groups, and that goes far beyond sorting, neck turning and prepping the primer pockets and flash holes. Here was his full process for case prep:
Weight sort cases
Anneal the necks with a small propane torch "
So annealing was part of it...
I'm not going to go into this any further other than say that as mentioned, the typical accuracy required by shooting short range benchrest..ie 100 & 200 yards is 0.1 MOA... Been there done that and the price of a rifle would shock most people. My 6mmPPC was built by Kelbly's for the USA International Shooting Team. A very expensive Stolle Panda Terry - Leonard composite carbon fibre laminated stock and even with limited case prep...ie 220 Russian Lapua Cases, fireformed using a very old barrel in a Remington 700 but the same chamber dimensions then first firing in my Stolle produced one hole 5 shot groups... I don't have the equipment to measure a group size other than one hole.....
At my first competition it was all about reading the wind...not like at home testing so the groups opened up.
That zero size 5 shot group got even worse at 200 yards... yes yards is what short range benchrest is.
What a pleasure it is to shoot a 6mm PPC, 22 PPC is likewise but not as accurate in real life.
Tassie Tiger, I don't want to take this further off topic but accuracy is what I love, competed and tutored a few people who went on to win their events. Love the challenge but it gets hard when you go past 70 YO and the body just doesn't want to keep up with what is required.
I love what Jarhead is doing, would also love to meet up with him some time a see if I can run circles around his 6.5 CM with one of my 6.5.47L's.
Sorry Jarhead, I've taken your topic "Off Topic".. so I'll stop here.
I’m sure Jar head doesn’t mind regardless - it’s all very interesting stuff and you clearly know your stuff. No one was debating that - Based on Jars previous posts and his apparent thirst for knowledge, I’m sure if the chance arose he’d be all over it...if you can help him pick up .1 - it would save home 6 pages of maths lol.
I met a gent today who has put my name down for a closed range school that specialises in 600-1400m
Just talking to this guy - you can tell the chaff is not in with the s**t as he exampled and recounted some amazing Stories...including one where he asked his students to choose a .3 projectile for 1000m shooting based on what they had been shooting At 300m. He himself, chose the worst performing projectile - knowing that it had not settled in flight at 300 but would hold stable post that to 1000...
As he also said - after the 500m Point, the environment plays into the poi than the difference of a rifle shooting 1.5moa to .5 moa and then he reasoned how...these stories made me want to sign up immediately, as like many on here, I’m keen to learn and soak what I can, when I can...
Anyways - metallurgy is but one of the sciences that over laps with shooting...I’ll pay more attention to some of the annealing info