Anything I could find about this round said it was a low pressure round that shot a 200 grain bullet at a moderate pressure . And actual diameter was .424" .
So I happened to have some aircooled wheel weight cast bullets from a Castboolits Group Buy 434-207GC mold already cast and proven on deer at what I consider more realistic velocities .
But I decided to try them in 444 cases with 15 grains Unique , 16 grains Unique , 15 grains SR7625 , 16 grains SR7625 , 16 grain SR4756 and 17 grains SR4756 . I assumed all these loads should be 1700 FPS or less . And after the shooting and averaging were done none averaged over 1600 FPS . The old gun has iron sights and a very very thin rifle barrel so I wasn't expecting to much .
This was the first with 15 grains of Unique , for some reason the Chrony didn't pick these 3 up !
This was with 16 grains of Unique for an average velocity of 1580 FPS , I kinda think the wide one was my fault !
This was 15 grains of SR7625 for an average velocity of 1447 FPS .
This was 16 grains SR7625 for an average velocity of 1497 FPS .
Then it was 16 grains of SR4756 for an average velocity of 1408 FPS .
And finally the last one with 17 grains of SR4756 for an average velocity of 1456 FPS .
All in all not a bad first effort .
A little later I tried my semi light pressure #1 Buck handloads . The barrels on this drilling miked around IC and M and both barrels put all the buckshot on the board at 25 yards with the modified doing a bit better !
All of it was good for deer at 25 yards . Next effort will be to see how well or bad I do with the open rifle sights at 50 yards !
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