Originally Posted by davkrat
My soon to be 10 year-old son shot the 110 grain reduced loads today and came away unscathed. I fired one of the 155 grain H4895 loads but it seemed like there was a delayed detonation and the case seemed smoked. Sort of like a distinct click....bang. I pulled the rest of them seems the 60% load was too light with them.
You did the right thing. Squibb loads can be very dangerous.
Less powder is not the answer to slower loads that recoil less, The problem is extra space in the case.
Powder has its own fuel and oxygen. The oxygen in the space that is not filled by powder increases
the burn rate and also the powder that does not completely cover the primer flame, changes the flame front and can cause the primer to start more powder than normal because the surface may run the length of the case. this drastically changes the burn rate. I limit my loads to no less than 90% case density and prefer 95 to 100% even when fire forming.
This is the reason that the loading manuals warn not to load less than the minimum load listed.
Glad everything worked out and nothing bad happened.
J E CUSTOM