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Joined 22 days ago
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Cake day: November 23rd, 2025

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  • GajosoOPtoHelp & SupportModelo Poly 43R Prep/Reloading Help
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    18 days ago

    Sounds good, .38spl is very pleasant to shoot and cheaper anyway haha.

    I’d be interested in the reinforcement ideas. The hammer looks like it could be cast out of a metal like Zamak. The breech might be too complex but I bet there is a way to cast it too, maybe in parts, then cleaned up using jigs like 80% frames/lowers. SCS inserts for contact surfaces could be an option too.




  • Take a Q-tip and see if the residue wipes away, it’s likely just the powder residue from the blank. Case cracking probably comes from the chamber being slightly oversized for the blank. A note for the slugs, since the blanks are crimped at the tip and the air gun slug rests on it, the blank opens up and damages the bottom skirt of the slug when its fired because there is no space, which would mess with your accuracy. You might be able to increase accuracy of the slug by gluing a printed spacer or a BB between the slug and blank.






  • GajosotoHelp & SupportAdvice for P-10 Mag
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    22 days ago

    Glad there’s interest in the P10! I compared a P10 mag to a Glock mag and the P10 mag is smaller front-back but just about the same widthwise, so the weakest and thinnest walls are there. You might be able to use a printed follower + Glock springs since the angle is very similar and the Glock mag walls are thicker so internal area is smaller. The feed taper where it goes from double to single stack for the mag is pretty long so not a lot of material there either. Worst case, you could do a single stack P10 mag with super thick side walls and maybe a G43 mag spring lol.