Post by edge on Jul 7, 2008 14:57:17 GMT -5
A while back I was asked about 50 caliber sabots from PVC. I explained that the material would need to be oversize ( 9/16) since 1/2 material would not guaranty that it would clean up while machining.
I did entertain the thought that I could machine the ID and OD undersize, and that that may work. Today I had the time to try it.
I was at the range for exactly 1 hour. This consisted of setting up, cleaning the bore, putting out the target, shooting 4 groups of 4 shots, and 1 pit stop ;D
I shot the top group first, then rotated the target to the right "undersize" group. Then the "tight sized", and finally the "Mixed Duplex" ( which the scanner cut off ).
The Regular sabots load fairly loose, probably 15 pounds.
The undersized were much tighter, and probably felt like a normal sabot load 40# perhaps.
The tight sized were probably a little more loose than normal 10-15#.
Then back to the Regular sabots, but mixing the Duplex for about 30 seconds in an oversize load container.
16 shots in an hour means less than 4 minutes per shot, probably 2-3 minutes on average.
First I like my new targets as far as sighting, although going down range to rotate 90 degrees every 4 shots is a bit of a pain, but when you shoot solo it is not that bad.
IMO, If somebody were to try to machine a 50 caliber sabot from 1/2 material it seems doable. I will try to machine a few more with a bit more clearance so they load easier, but I don't think that you give anything up in the way of accuracy.
Shots 1,2,3 were the 5th,6th, and 7th shots so the bore was warm. Shot#4 felt good, but I do not recall how it loaded.
Next time out I will try these sabots as the first shots and see if it makes any difference.
edge.
I did entertain the thought that I could machine the ID and OD undersize, and that that may work. Today I had the time to try it.
I was at the range for exactly 1 hour. This consisted of setting up, cleaning the bore, putting out the target, shooting 4 groups of 4 shots, and 1 pit stop ;D
I shot the top group first, then rotated the target to the right "undersize" group. Then the "tight sized", and finally the "Mixed Duplex" ( which the scanner cut off ).
The Regular sabots load fairly loose, probably 15 pounds.
The undersized were much tighter, and probably felt like a normal sabot load 40# perhaps.
The tight sized were probably a little more loose than normal 10-15#.
Then back to the Regular sabots, but mixing the Duplex for about 30 seconds in an oversize load container.
16 shots in an hour means less than 4 minutes per shot, probably 2-3 minutes on average.
First I like my new targets as far as sighting, although going down range to rotate 90 degrees every 4 shots is a bit of a pain, but when you shoot solo it is not that bad.
IMO, If somebody were to try to machine a 50 caliber sabot from 1/2 material it seems doable. I will try to machine a few more with a bit more clearance so they load easier, but I don't think that you give anything up in the way of accuracy.
Shots 1,2,3 were the 5th,6th, and 7th shots so the bore was warm. Shot#4 felt good, but I do not recall how it loaded.
Next time out I will try these sabots as the first shots and see if it makes any difference.
edge.
