Special “long throat” G20. They couldn’t , wouldn’t, chamber in any standard .45 barrels. My throating had “freebore” to the point it’s almost .45 Schofield length before the slug engages rifling and starts building pressure. Actually I accidentally took the throating tool deeper than I intended. But on a $50 barrel I thought I’d try it anyway. It works great and has conventional rifling, not polygonal. Remember, you’re not supposed to shoot lead through factory Glock barrels.
Not that I’d consider duplicating the exercise, it’s just interesting.
The 300’s functioned in the rubber gun fine. Good case support, no bulges, but I was running a hefty #26 spring and chambered brake too. Never intended a steady diet of them, just proof of concept. Velocity is classified, but you’d be pleased. lol
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Just for more discussion, 200 or 230gr FP and
- drdougrx, 2025-08-20, 11:37
![[*]](themes/default/images/complete_thread.png "Open whole thread")
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Thinking of using them in my Shield 3.3” (nm)
- drdougrx, 2025-08-21, 05:26
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My PM45 is smaller still and handles 230 ball fine
- WB, 2025-08-22, 06:26
- I run factory 230 hardball in my Firestar - Dave H., 2025-08-22, 08:26
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My PM45 is smaller still and handles 230 ball fine
- WB, 2025-08-22, 06:26
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250+P at ~950fps, please…
- Dave H., 2025-08-20, 19:06
- lol, I loaded up some custom 300 gr. For my - WB, 2025-08-21, 09:10
- I’ve seen commercial loads with both at 1000 FPS! - WB, 2025-08-20, 18:34
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The 230 at 850 fps will shoot through a LOT!
- Jim Taylor, 2025-08-20, 11:44
- You darn right it will!! (nm) - Dave H., 2025-08-20, 19:06
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Thinking of using them in my Shield 3.3” (nm)
- drdougrx, 2025-08-21, 05:26