TrueBluePyro

groung projection shells... are they the ones that sort of break at the mortar and are in the shape of a number?

Yeah, I thought that might happen and so I uploaded it to youtube, I didnt really want to upload it else where cause I dont have much bandwith a month, but I do try.

I am more ignorant than most, but I try to make up for my ignorance (gradually, of course) by doing tests. I too was concerned about the sensitivitiy of flash since I have almost no experience. From reading, it seemed that whistle mix was the most sensitive of the flash powders I use (more sensitive than general purpose H3 or other aluminum based) so I did a series of tests trying to get it to ignite. I posted the details of these tests awhile back. The final test was hitting a small paper canister full of whistle mix with a high speed bullet (several times). The bullet was copper jacketed, and the canister was mounted on wook--no spark. None of the tests resulted in ignition. For my own sake, I think the danger is mostly from spark and less so from mechanical impact. Certainly not conclusive, but I'm more comfortable working with flash after doing these tests.

70/30 kclo4/al can be set off with a .22 rifle....and whistle isnt flash, but that has been said and ur post is old...lol

Ok, uploaded it onto youtube a few hours ago and it just got removed for terms of vailation, lol, youtube is a fricken waste of time....

Do you have any other way of showing the video?

Not sure what you mean mate? if you can just go make like a 10-100g batch and see it for your self...It wont be a waste of chems.