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Author Topic: Took the reclaimed MK to the Rock Pit - Final Tune Up  (Read 1174 times)

Offline Sabotloader

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Took the reclaimed MK to the Rock Pit - Final Tune Up
« on: October 06, 2015, 02:03:25 PM »
Got some time this morning so I packed up and headed to the Rock Pit to get some 100 yard Bird Shooting in.  I had sighted in for a 75 yards at the Farm and wanted now to verify the guns ability at 100 yards.

My initial intentions were to set up 5 clay pigeons on the rock wall and shoot them with the Sierra 458x300 gr. FN HP bullets to verify what I thought I already knew.  The first three shots went pretty much as planned so I decided to switch things up a little bit and shoot some Lehigh/Bloodline 458x300's.  I got the same results with them as I did the Sierra's. For this shoot I was using a 6 O'clock hold on the birds with the bird sitting right on top of the front sight.  I forgot how small a 4 1/4" round bird is at a 100 yards looking through a peep sight but using my portable bench and rests I was able to get the job done.  With the birds gone and really not much shooting done, I set up another 5 birds for another go at them.  This time out of the blue I decided I would try a completely different bullet.  I found a box of Lehigh 50x350 grain CF bullets. So I will start with these and see how it went. 

The Lehigh .500x350 is a center fire bullet and the circumference of it is smaller than most 50 cal. ML barrels.  To get this bullet to work in a ML I apply a knurl to the bullet.  This is the bullet after knurling



These bullets were knurled to fit my Ultra-Lite which has a slightly tighter bore than does is much older Tony Knight MK-85; because of that I was really unsure of the fit.  I placed the MMP sub-base in the bore and then the knurled 350.  It was not tight at all - in fact it was very easy to push down on to the powder.  I was very skeptical of this first shot.  Since brass does not obturate to the bore as soft lead does and this is a long bullet I was worried that it would not stabilize.

First shot went off without a hitch and the bird was gone! Loaded up 4 more of these bullets and two the 4 loaded with more pressure - a pressure I was more comfortable with and all 4 of these bullets found there mark.

I forgot to get a picture of the second set of birds until I had already shot two of them... but here is a group of pictures showing what I was doing.



The gun is ready to hunt with - the neighbor across the street should be able to get the job done.
Keep shooting muzzleloaders - They are a blast!!

 


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