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.308 Winchester

Again, I have not personally proved or disproved any of these comments found on the internet. I was simply replying to the question asked about why I do it the way I do it. I was very inexperienced back then, I read some things that may or may not be true, and I decided to go a certain route. The route I went has given me really good results.

That's why I also mentioned that he will most likely have adequate results even with a bushing die, given that his components are up to it and his reloading techniques are good. Too many people here having high success rates with bushing dies and non bushing. Same with mandrel vs no mandrel.

That’s why it’s not good to keep repeating the same rumors on the internet. Some people take them as fact.

Optimum barrel time: great theory or bunk?

What got me thinking about this again is the Little Crow Gunworks videos - exhaustive reloading explanation across 16 or 17 videos. Most of his instructions are based on fairly up to date wisdom for anyone who follows precision reloading practices fairly closely the last 10 years. FL size everything, common sense powder selection, buy enough components for the barrel life, etc. But he does test seating depth and feels it makes a noticeable difference. He also uses GRT OBT and says it helps him narrow down the search for the best loads. While I think it is mostly impractical, I could see there being some usefulness in narrowing down your load development process to loads within a certain window. Kind of like a more detailed version of - relying on crowd wisdom that 6 Dashers, Lapua brass w 105 hybrids and Varget XX.X charge weight works most of the time. Not relying on it from day to day, location to location, but simply using it to lower the amount of load development needed to get to a decent result. But FIIK.

.308 Winchester

That’s all BS about bushing dies. I have been using bushing dies in multiple calibers for over 20 years and load very accurate ammo. Look around the internet, and you will find someone saying the way you do it is wrong also. The internet is like that. You have to find what works for you and use it. I use what give me excellent results and is the least amount of work. Why I stopped deburring the flash holes.
Again, I have not personally proved or disproved any of these comments found on the internet. I was simply replying to the question asked about why I do it the way I do it. I was very inexperienced back then, I read some things that may or may not be true, and I decided to go a certain route. The route I went has given me really good results.

That's why I also mentioned that he will most likely have adequate results even with a bushing die, given that his components are up to it and his reloading techniques are good. Too many people here having high success rates with bushing dies and non bushing. Same with mandrel vs no mandrel.

Barrel Torque Ludicrocity

Yeah, I'm not sure whats going on with ARC.

I thought it may have been a singleton error......it happens. But how their "tech expert" handled it when we called was pretty terrible. Long story short......I cut the barrel to their HS measurement of .822 +/- .001".....barrel measures .8215ish.......action measures .826ish......ARC expert said "Although that's on the extreme end, that's within safe acceptable HS range for 300 Norma" there wasn't any hint of "Wow our action HS is way off the norm".

Then I get another CDG order that is a switch barrel setup 6ARC and 308......both bolt heads measure about +.004 over their prefit spec sheet.

Either update your documentation for your new standard.......or are you throwing darts in the dark?

So forgive me if I'm a little jaded when I hear someone rave about the excellence of said company and their products.

Ern
The print we have says 0.825 +/-1, where is the 822 number published? The 825 number has been standard since 2018 timeframe with the Nucleus launch and several shops, myself included, argued with Ted to make the 825 number standard and keep it for the Coups. We've never run into an issue with the Coup on headspace using 825.
I wouldn't be happy with that answer either, and that answer does not sound like the usual response from ARC. Sucks you had that experience.

I only have 2 early CDGs and both are well within print spec. The other 7 I've measured and swapped bolt heads between were 4 Archimedes and 3 nucleus.

The other variable and can of worms of course is the calibration status of the metrology equipment of everyone in the chain from the manufacturer to the gunsmith. Does ARC have a machine issue and is only sample inspecting the actions and bolt heads, do they have a piece of inspection equipment that's out of calibration and are accepting actions that are actually out of spec, or does the gunsmith have a piece of inspection equipment out of calibration and their measurements are incorrect and the action is actually good? Always a good idea to verify the inspection equipment, but based on your numbers it seems ARC may have an issue somewhere in their process.
Or does someone else have an old print or an incorrect reference entirely? Instead, using 825 all the numbers match up there.

I did see some early Nukes that were 822/823 range and that caused some very early, very rare issues being that we were cutting the barrels at the time to 823+/- 5 tenths since the number ARC gave me was 825 +/-1, however I haven't seen anything like that since 2018 Gen 1 Nukes.
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Optimum barrel time: great theory or bunk?

Just to dig this back up, because it’s an interesting concept. I’m skeptical because if your trying to predict which loads will perform best based on optimal barrel time, then doesn’t it all go out the window the moment that the temperature increases or decreases, thus changing chamber pressure and speed? And any significant elevation or DA changes? Not to mention primer, bullet, powder lot variations. New brass vs 1x fired etc.

If people went and tested a bunch of different loads on day 'A' and then went and performed the exact same test(s) on days 'B', 'C', 'D', etc., I would guarantee the conclusions from each day as to what's the "best" load would differ.
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Barrel Torque Ludicrocity

In the 2013 F TR Worlds I had a smith who did not think you needed a lot of torque. After shooting several matches and team practices I was shooting at 1000 yards and could not get the rifle to group. Barrel had been tack driver and ammo was great. Pissed off after bad string I picked up rifle by barrel almost ready to throw it in weeds. I felt barrel shift. Checked it out and barrel was loose. I borrowed a wrench and tightened best I could before shooting next string. Rifle went back to shooting great

Since then I use as much torque as allowed based on action

ARs don’t require as much torque because of how they interface and materials used. I bed every AR barrel I install so it basically glued in place. They have all shot better that way for me

Maggie’s Motivational Pic Thread v2.0 - - New Rules - See Post #1

A build up of plaque is the usual cause for arteries to close
Plaque can be cleaned out over time with a quality Natto Kinase product. However most natto comes from China, and has no therapeutic value. I know someone who, like Bruce Willis, was developing frontal lobe dementia at only 62 yo. Within 6 months he was much better, and now is back to normal.

When he was younger, he had been a smoker for 20 years.