I want to build an indoor bullet trap that also incorporates a chrono.

Coating your home with aspirated lead creates a bit of an issue. Maybe not for yourself, but if not, then for your heirs.

Take a stroll down the Memory Lane of American home-selling history, check out some of the law around lead-based paint disclaimers and relation to home values. And THAT law is relating to SEALED leads which are relatively inert (don’t eat paint chips, and you’ll be fine), whereas your aspirated lead will be anything but bio-inert…
I think I can come up with a medium that will trap the slug intact. Good thoughts. And funny. Thx
 
What benefit will you enjoy for incorporating a chrony (a fragile machine easily purchased off the shelf) with a bullet trap (a robust custom fabricated metal object)?

I don't see how either works better for being incorporated together; it seems far simpler to build a trap, and set an entirely unincorporated chrony infront if it.

And I can testify to the air quality concerns voiced above. I shoot across my chrony, into my trap, in the basement. About 10 pistol shots is enough to call it quits and ventilate the place.
Thx but ... blatantly obvious.
 
Yeah, nobody forgot, but you missed the point I made, completely. Because yeah, I might have forgotten that most bullets are lead <eye roll>. You, like most, seem to think that the bullet is the most threatening health wise, but it's not...which was my point, and the reason I brought it up...because these discussion always talk about the bullet...which isn't the biggest risk. There's two areas where lead becomes aerolyzed, and of immediate threat to health in an indoor or unventilated shooting area. The primer, and the base of the bullet where the powder contacts it. The bullet can be mitigated by using a TMJ or completely encapsulated bullet, even a poly coat mitigates that. The primer is almost never even considered, even though it's the most significant contribution to an immediate health risk. The minute you fire your gun indoors, you are breathing in vaporized lead, antimony, different nitrates, even aerolyzed aluminum or other other metals. This isn't a "it doesn't bother me for a few minutes" kind of thing, and over and above the risk of "lead poisoning"...this is exposing yourself to something that can have an impact almost immediately, and over a surprisingly short period of time. The downrange impact of the bullet is of virtually no concern at all, other than spalling, and long term contamination....but the immediate health consequences of the primer is a risk that is almost never considered, and the highest risk associated with indoor shooting.
Lead in primers is fairly antiquated. But to the point, I make my own primers and I harvest copper out of the hundreds of motors around here. The trap I desire is an enclosed system. I need not worry about ventilation as that part of this quarry has been well established. And I'm not going to tell you how we make our own primers. This started when they stopped having them. PS, I was the guy telling everyone to buy them prior to C-19 getting out of hand. Most here told me the local GS's had plenty so not to worry. But I respect the Hx.
 
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