Condor SS .257 with 29" barrel
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condor ss .257 project 29
installed 29" TJ barrel with RL shroud. Had to use 3 bushings as shroud is for 700mm barrel. Using my modded valve on a standard tank recessed the return spring for TH clearance and ported valve stem. Using Stock Hammer and Spring with 2 stock weights 83grams PW 6/8 Max power with this set up is 952FPS with 80gr Lyman round nose 3800 fill PW5 3800 fill 80gr 942,942,932 PW4 3800 fill 60gr 811,830,889,904,930,955,970,979,989,979,973,964,95 5,905,914 PW0 3300 fill 60gr 880,922,953,965,968,962,950,950,936,893,881,870 ------------------------------------------------------------------------------------------------------------ So I made a heavier hammer out of some brass 85.8grams using Stock spring and 73gr lyman 420 FN I am getting these numbers PW0 3400fill 915,954,947,941,921,905 PW4 3400 fill 934,952,933,911 PW4 3800 fill 902,937,971,953,936,921 __________________________________________________ ______________________ switched to 80gr round nose PW8 3800 fill 962,953,941,935 PW8 3800 fill 953,953,935,922 ------------------------------------------------------------------------------------------------------------ Started to do some accuracy testing so far the accuracy is good dime sized groups are attainable at 60yrds, using 73gr 420 FN mold Gun is reasonably quite with RL Shroud. |
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