- Location
- Petawawa, ON
Hey guys, I'm currently experimenting with polymer jacketed projectiles with mostly successful results.
At the moment, I've been creating hollow jackets in .38 spl for my single shot to conduct testing, and I've been filling them with Zircon as a lead-free substitute to lead. They seem to work quite reliably just using 1-2gr of Hod Pistol and they're stable, with the only downside being considerably lighter at only 48gr. (pics below)
www.dropbox.com/s/omk9xsthbftzc9m/IMG_1317.PNG?dl=0
www.dropbox.com/s/hegjdiaeudozh46/IMG_1318.PNG?dl=0
If you're wondering why I'm not filling them with lead is because I'm just trying out something new and to see if it would work, which it does. Lead was tricky since there's no mold for what I'm doing to my knowledge and just getting a batch of 10 filled with lead was a pain compared to just capping them with sand. But yes, lead does work quite well.
Since I've had some success with these, and I can make them for less than 5 cents in materials, I'm wondering if the same could be done in a high velocity rifle caliber. After doing a fair bit of research, I'm not finding much if any info on poly jacketed RIFLE bullets. I can't even seem to find info on why it can't be done, or why there's hardly any real info on attempting it or any kind of test data for this concept. Sure there's lots of info on pistol calibers, polymer casings etc, but not for rifle bullets.
So my question is, does anyone have any idea why this topic seems to not be discussed anywhere? Do you think it could be theoretically possible? Why or why not?
I would like to collect some data on this before I attempt it, since even though I'm setup to test these safely, I don't want to blow up my test gun if it can be avoided.
I'm afraid that I don't want to give away the poly blend of resin I'm using for these bullets just yet, but it's a high tensile strength heat resistant material, that's the best I can do.
If I were to try it, my initial specs would be:
Projectile Specs
Length: 1.050in
Weight: ??? Possibly 62gr?
Dia: .224
BC: .235 G7
Core: Lead
Jacket: My special blend high heat resistant poly resin
Case Specs
Length OAL: 1.755in
COAL: 2.277in
Powder: HOD CFE223, 20gr to start
Primer: Small rifle, non match
Constructive feedback and theorizing is much appreciated, thanks!
At the moment, I've been creating hollow jackets in .38 spl for my single shot to conduct testing, and I've been filling them with Zircon as a lead-free substitute to lead. They seem to work quite reliably just using 1-2gr of Hod Pistol and they're stable, with the only downside being considerably lighter at only 48gr. (pics below)
www.dropbox.com/s/omk9xsthbftzc9m/IMG_1317.PNG?dl=0
www.dropbox.com/s/hegjdiaeudozh46/IMG_1318.PNG?dl=0
If you're wondering why I'm not filling them with lead is because I'm just trying out something new and to see if it would work, which it does. Lead was tricky since there's no mold for what I'm doing to my knowledge and just getting a batch of 10 filled with lead was a pain compared to just capping them with sand. But yes, lead does work quite well.
Since I've had some success with these, and I can make them for less than 5 cents in materials, I'm wondering if the same could be done in a high velocity rifle caliber. After doing a fair bit of research, I'm not finding much if any info on poly jacketed RIFLE bullets. I can't even seem to find info on why it can't be done, or why there's hardly any real info on attempting it or any kind of test data for this concept. Sure there's lots of info on pistol calibers, polymer casings etc, but not for rifle bullets.
So my question is, does anyone have any idea why this topic seems to not be discussed anywhere? Do you think it could be theoretically possible? Why or why not?
I would like to collect some data on this before I attempt it, since even though I'm setup to test these safely, I don't want to blow up my test gun if it can be avoided.
I'm afraid that I don't want to give away the poly blend of resin I'm using for these bullets just yet, but it's a high tensile strength heat resistant material, that's the best I can do.
If I were to try it, my initial specs would be:
Projectile Specs
Length: 1.050in
Weight: ??? Possibly 62gr?
Dia: .224
BC: .235 G7
Core: Lead
Jacket: My special blend high heat resistant poly resin
Case Specs
Length OAL: 1.755in
COAL: 2.277in
Powder: HOD CFE223, 20gr to start
Primer: Small rifle, non match
Constructive feedback and theorizing is much appreciated, thanks!
