Does the polymer coating being used on bullets
Brent Foy
[subject]
Thursday, February 15, 2018, 14:11 (3128 days ago)
Eliminate the need for a gas check at higher velocity. I’m loading around 2000 to 2500 fps.
No, it may help some though. I run both.
WB
[subject]
Thursday, February 15, 2018, 14:36 (3128 days ago) @ Brent Foy
One thing a check does is provide a terrific uniform base which enhances accuracy. It also is basically a very, very short bullet jacket if you want to think of it that way. This helps the bullet take the rifling and spin with the bore as it is pushed under pressure. Even with a check if pushed faster than the alloy can take the rifling it will strip along and lead. It's pressure, over time, and what the actual alloy can manage as it's pushed.
The coating is basically modern paint that bakes to a rigid shell making a very thin jacketed coating bonded to the lead. It does a great job preventing lead vapors for indoor shooting and handling the bullets. It also takes the place of lubrication, for the most part. I've just played wiht it a little and it's fun. Something new to toy, but it is useful. Less messy, sort of. LOL.
Thanks, that’s kinda what I thought. The adds say it
Brent Foy
[subject]
Thursday, February 15, 2018, 16:31 (3128 days ago) @ WB
Reduces leading, so I was curious as to how much and you answered that, thanks WB
I've been told that lead is very dangerous all my life
WB
[subject]
Friday, February 16, 2018, 07:46 (3128 days ago) @ Brent Foy
I'm certain I've also mishandled it all my life too. As a kid I gnawed on lead paint toys and window sills, stalked birds with lead pellets in my mouth. I was ignorant, didn't know any better. Later I've cast and handled lead with my hands. To hear some guys they suit up like HAZMAT folks to cast. I bet a HAZMAT crew would be ordered to de-con my casting area, 5 O'clock new stuff for sure.
In truth I truly think the exposure is not truly understood and more than a little overrated. Parts per billion, parts per trillion, it's all BS when you corner a scientist and ask the right questions. For the greater good kind of thing.
But that paint coating does add a barrier between the lead and bore, keeps you from contacting it or dust, eliminates lead vapors on firing, and it is not smoky at all when you shoot UNLESS you add liquid alox afterward. Which is OK if that's what you are into. If price is pretty close I'd sure go for it.
Casting them yourself and adding the baked on coating adds 0.002-0.003" to the overall diameter. So you do need to allow for that and re-size. A delightful exception are 9mm bullets (.355") to be shot in a .38/.357 (.358"), coating them bumps them up just right!
Alox
Brent Clark
[subject]
Friday, February 16, 2018, 19:03 (3127 days ago) @ WB
I was getting a little bit of leading with the particular bullets I purchased so decided to try the Alox. I will try a different brand next time because I’d soon skip that step but it did help. The coating is sure nice as far as handling during loading.
Coated bullets
Brent Clark
[subject]
Thursday, February 15, 2018, 17:06 (3128 days ago) @ Brent Foy
I’ve experimented a little and have taken the coated bullets and tossed them in a plastic container with a little Alox. Good results in .44 mag and .30-30.