Post by GLSHOOTER on May 21, 2015 18:38:12 GMT -8
I just talked to Ritch about these "short" cases. It seems that when guys are making there cases and checking the length they are dropping the BCG with the full force of the buffer spring...DO NOT DO THAT!!!!! If you do you are slamming the shoulder into the chamber and basically pile driving it to be smaller. After repeated droppings you will have extraction issues. It won't work manually but if you fire it everything lengthens out and extraction will be fine.
To check your case fit pull the upper OFF the lower. Insert a case manually into the chamber and close the BCG with finger pressure or a bit of a sharp push. If it chambers and EXTRACTS easily with the charge handle you are close. Now to get it dead nuts, since you used the set up gage probably, unscrew your die 1/8 turn and make a new case. Repeat as above. Does the bolt close and does the case extract EASILY, I mean slick as owl snot on extraction? If so then you turn it OUT 1/8 more turn again and repeat until you A: have a failure to lock up or B" a hard extraction. Once you reach Maximum screw the die back in and check it with a newly made case. Did it get easy again? If so make up FIVE cases and manually insert and cycle them with your fingers and charge handle. If you are set right and you pull that CH the case should pop right out and go flying.
This is how we made cases before we got the set up gage. You have to realize that tolerance stacking of your dies, the bolt face and minute chambering differences can add up to several thousandths. These are wildcats but in the real world evEn a pure SAAMI set up from ANY manufacturer can encounter this. All measurements are IN SPEC but together they are not so perfect.
If You have ANY questions on this please contact Ritch or me.
Greg
To check your case fit pull the upper OFF the lower. Insert a case manually into the chamber and close the BCG with finger pressure or a bit of a sharp push. If it chambers and EXTRACTS easily with the charge handle you are close. Now to get it dead nuts, since you used the set up gage probably, unscrew your die 1/8 turn and make a new case. Repeat as above. Does the bolt close and does the case extract EASILY, I mean slick as owl snot on extraction? If so then you turn it OUT 1/8 more turn again and repeat until you A: have a failure to lock up or B" a hard extraction. Once you reach Maximum screw the die back in and check it with a newly made case. Did it get easy again? If so make up FIVE cases and manually insert and cycle them with your fingers and charge handle. If you are set right and you pull that CH the case should pop right out and go flying.
This is how we made cases before we got the set up gage. You have to realize that tolerance stacking of your dies, the bolt face and minute chambering differences can add up to several thousandths. These are wildcats but in the real world evEn a pure SAAMI set up from ANY manufacturer can encounter this. All measurements are IN SPEC but together they are not so perfect.
If You have ANY questions on this please contact Ritch or me.
Greg