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Been loading and shooting cast powder coated bullets for a while.
245gr SWC
Lyman Bullet Mold #429421
Sized to .429
Using a Smith 629-6 5 inch with a factory forcing cone that appears to be cut by a chainsaw.
I have ran many different powders and loads using this bullet, and seen no leading issues.
My standard load is 9.0grs of unique.
My new standard for full house will be 23.5grs of H110 with Winchester Primers.
I have made and shot only few cylinders of this H110 load and saw no leading.
They clock at 1329fps AVG.
I read some use gas checked bullets and some don't.
Elmer didn't.
So, with my mystery lead, that is on the soft side anyone see a leading issue in my future?
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The 429421 doesn't take a gas check, but you know that. For those who don't know its a 250 gr SWC, flat base. One of the bullets Elmer Kieth designed. His favorite 44 mag bullet.
I powder coat and am not very scientific on my lead alloy. I just add a little of this, (WW's) little of that (unknown and soft lead) and run a finger nail on a bullet to test hardness.
I shoot the Lee 310 gr SWC (it's a gas check design and I use a GC) with full load in my Redhalk.
The Redhalk's long cylinder allows seating the bullet out so my H-110 load is above the manuals max.
In 357, I push Lee's 158 gr SWC (plain base) to the max listed load.
In 32 H&R Mag, I'm also above max listed load in my SP-101.
None of the above powder coated bullet loads have the slightest amount of leading.
In 223 I load a powder coated Lee 55 gr FN GC,it shoots well at 25 yds, have more loaded to try at 100 yds.
No leading with these either and the loads function my AR. Same alloy as pistol bullets.
Plain and simple, powder coating done correctly is magic with cast bullets.
One of my cast 223 targets.