No way is there a 4 inch difference. You aren't measuring with the bolt open are you?
Use the OBT tool to auto-adjust the powder to match real-world results. You can change initial pressure beforehand, but keep it realistic.
No way is there a 4 inch difference. You aren't measuring with the bolt open are you?
Use the OBT tool to auto-adjust the powder to match real-world results. You can change initial pressure beforehand, but keep it realistic.
Resident 6.5 Grendel aficionado.
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