RamblinWreck88
Useles Billy ain’t got nothing on ME !
That explanation makes sense; I see that the Nosler book contains that number in their load date. With a good bit of room between 55.5 gr and max, I hope to see that phenomenon have a positive effect on my groups.Glad to see your new venture is coming along nicely.
Yes, often times loads approaching max will result in the best groups. I’ll make an attempt to explain why. Max/near max loads will mean your filling the case up closer to full capacity, perhaps 90+%. This means there will be a more uniform burning of the powder and more shot to shot consistency (lower standard deviation). That consistency will show up with mating to barrel harmonics and tighter groups. Powders that have lower fill capacities allow more empty space that is actually more oxygen, which can affect the burn (oxygen is an ingredient to any burn).
On that Lee crimp article, I remember when that came out and there were other companies like Federal disputing Lee. I have a few Lee factory crimp dies for the reasons I stated above. I love them for AR and M1A ammo.
Regarding the Lee crimp article, I can see what they're saying, but I also take with a grain of salt what anyone who is trying to sell something to me says about its effects. I'm just going to keep working without crimps for now, since it evidently "ain't broke"