Case fill and burn %

[memtb]

I don't live in a vacuum. I hunt and shoot in reality

I have done this for years and have no issues with my set up and my system.

Single digit SDs. Great Accuracy. Great results.

Didn't really need coaching. was more sharing my experience.

Sir, we all made mistakes in life…….some of us even admit those mistakes and learn from them! Thankfully most of us choose not to repeat our mistakes by altering our procedures!

I've made many, thankfully I was blessed with the opportunity to correct them! In those rare occasions…..you may not get a second chance!

Continue on as you see fit! memtb

 

[Huntaddict]

Sir, we all made mistakes in life…….some of us even admit those mistakes and learn from them! Thankfully most of us choose not to repeat our mistakes by altering our procedures!

I've made many, thankfully I was blessed with the opportunity to correct them! In those rare occasions…..you may not get a second chance!

Continue on as you see fit! memtb

I hear you, made a few on the way myself - don't let me new ness here influence you...been doing this a long time.

Enjoy and Merry Xmas!

 

[Darkker]

I pay absolutely no attention to case fill percentage, because it's a meaningless measurement outside of compressed loads. Using Lee's 1-Graon calc factor, I've significantly downloaded almost everything in the 30-06 case family, and my 264 WM.
My 204 is the daily shooting warhorse against vermin arrive the ranch. It's most accurate load is a fair amount below the Hodgy starting load. But the burning curve is stable.

 

[Beluebow]

If it shoots small and within a decent velocity range for that particular cartridge....I honestly could care less about case fill and burn percentage.

 

[Brathany]

I see this mentioned quite regularly, and each and every time……I am left bewildered!


This is for a hunting rifle…….not intended for a hunting rifle. This will take two seasons…….summer then winter! Patience is a virtue !


Develop your load in the hottest ambient temperatures you're likely to ever encounter when hunting. Allow the rifle and test ammo to reach ambient……though not in direct sunlight. Work up to your maximum that gives the accuracy that you desire.


Then, once winter is set in, allow the rifle and ammo to once again reach ambient temperatures. Now shoot across your chrono to verify your velocity and it's accuracy. If the accuracy is acceptable……you simply adjust the scope for the velocity difference if any!

I'm pretty darn certain that this will alleviate high temperature, high pressure surprises!

Perhaps I'm just a simpleton……but this seems a very logical approach to preventing the high pressure situation that we see mentioned on this and other forums many times! memtb

I used to think this method was acceptable, but then found that the loads I made up and shot good in the Summer didn't do good in Winter & vice versa. Precision wise.

So, I have winter & summer loads reaching the same velocities using different charge weights. Sometimes even different powders.

 

[FEENIX]

I do my best to strive for 100% (+) case fill and 100% burn inside the barrel.

I am not sure if you saw this thread, but the video is fascinating: https://www.longrangehunting.com/threads/slow-motion-bullet-muzzle-exit.371730/