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1) Because Ackley rounds dont stretch we want to keep them tight and not size them down each firing so as to extend case life. 2) What I find is that different brands of brass, number of times fired...

How do you know 40 wont chamber and eject and not just one or two ? I run all my Ackley reloads through the chamber to check em and some batches get a few tight ones that resize themselves when...

Just go out in a paddock and run them all through the chamber a couple of times, that will cure them if close to chambering. Fire any that are too tight.
The donut ring on the neck and a normal load...

Have you watched Eric's vids on 'reading groups' ?

Certainly looks like 2168 is headed / trending into a wide node. Takes a lot of time this !
One thing I would like to do myself is fire one shot every morning from a cold barrel to give a five shot...

Good result with 45.5. Was that what you expected ? I am surprised that the loads either side didnt have a lower ES, putting you in the middle of a sweet spot rather than in the middle of some...

With the Partition load, I am wondering if the best charge weight might actually be at around 62.8 ish and not 63 ? Going from 63 to 63.5 'they started to open up' well 'they' might have started to...

Thats a cleaver idea MD. Danny I have a spare ring here that you can have, yours for the asking

When I posted earlier about the feeler gauges, I should have said that I used them with my comparator inserts and calipers. As calipers are not accurate like micrometers are, I figured 3 thou of...

Not having a micrometer seater myself, only verniers to measure, I have sometimes used a set of feeler gauges to accurately increase seating depth from my base measurement. Is this sensible or am I...

Any of you guys watch Mark and Sam ?
https://www.youtube.com/watch?v=Dn1pRTvmP8k

Cortina anticipates that the throat will be eroded over time and that distance from the lands will change. His seating depth method takes this into account and seeks to find a seating node wide...

The Cortina method might be underpowered in your eyes, but it is a great improvement on the Morris Minor low light method that Danny and I were using