I picked up a slightly used 16" Proof Carbon barrel and 15 inch handguard for my 300 Blk Mini Fix pistol recently off the SH marketplace. I could not find much information on the net about this combo and accuracy so thought I would provide some feedback. As only "20 rounds fired through barrel" per the ad, I thought it might be a lemon. In fact, it is probably the easiest barrel I have ever had regarding load development!
As you will see, these are three round groups, which are a bit suspect in isolation. When all the three round groups shoot well, a pattern of performance emerges despite the three round per charge weight limitation.
77 TMK, 77 SMK, and 53 Vmax loads were shot. N140 was used for the 77gr weight loads. N133 was used for the 53gr Vmax.
Starting with the 77 SMK at 100 yards:
The 77 TMK at 100 yards:
The 53 Vmax at 100 yards, note how the shots for 77 SMK/77 TMK/53 Vmax are essentially within 1/2 minute of the same point of impact for the same point of aim:
The 77 TMK at 300 yards:
The 77 TMK at 600 yards:
As you will see, these are three round groups, which are a bit suspect in isolation. When all the three round groups shoot well, a pattern of performance emerges despite the three round per charge weight limitation.
77 TMK, 77 SMK, and 53 Vmax loads were shot. N140 was used for the 77gr weight loads. N133 was used for the 53gr Vmax.
Starting with the 77 SMK at 100 yards:
The 77 TMK at 100 yards:
The 53 Vmax at 100 yards, note how the shots for 77 SMK/77 TMK/53 Vmax are essentially within 1/2 minute of the same point of impact for the same point of aim:
The 77 TMK at 300 yards:
The 77 TMK at 600 yards:
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