Most people probably don't need to be told this, but here is what happens when you run 460 Rowland loads through your Glock with an OEM barrel...
This was 10gr Longshot under a 230gr Hornady XTP, going 1275fps.
I used a 24lb recoil spring and the pistol didn't feel like it was getting beat up - felt great, but obviously an aftermarket barrel with full support is required for this loading.
However, 12gr Longshot under a 185gr XTP @ 1490fps was good to go with no buldge at all.
You might be asking "How did you fit 460 Rowland cartridges into a Glock 45 barrel". Well, I didn't. Those were fresh Starline 45 super cases loaded to 460 Rowland specs. 460 Rowland brass is slightly longer, but not heavier duty. 460 Rowland COAL is the same as 45acp and 45super, so the longer case is not for powder capacity - it's only to prevent chambering in standard 45acps.
This was 10gr Longshot under a 230gr Hornady XTP, going 1275fps.
I used a 24lb recoil spring and the pistol didn't feel like it was getting beat up - felt great, but obviously an aftermarket barrel with full support is required for this loading.
However, 12gr Longshot under a 185gr XTP @ 1490fps was good to go with no buldge at all.
You might be asking "How did you fit 460 Rowland cartridges into a Glock 45 barrel". Well, I didn't. Those were fresh Starline 45 super cases loaded to 460 Rowland specs. 460 Rowland brass is slightly longer, but not heavier duty. 460 Rowland COAL is the same as 45acp and 45super, so the longer case is not for powder capacity - it's only to prevent chambering in standard 45acps.
