09-23-2020, 06:51 PM
Received my copper creek modified case.
Now my resized cases measure 1.184-5" at the datum line.
The modified case, 1.182. Its OAL is 1.483.
I took 3 bullets at random out of my boxes, of the following:
90 TGK
95 SST
103 Eldx
Hdy 105 Bthp
Sierra 100 BTSP (gameking)
Bullet COAL's were consistent, with the 100 SGK differing by 0.005... 'course it has a soft lead tip and I have found these usually differing in COAL by as much as +/- 0.005
Measured OAL's, modified case and bullet to the lands, for them in my chamber are as follows.
90 TGK: 2.338
95 Sst: 2.203
103 Eldx: 2.3005
105 Bthp (this is the one in the Hdy Black): 2.277
100 SGK: 2.140
For the 2 relative "shorties" I'll probably shorten my max OAL by 0.020, 95 Sst, 2.180; 100 SGK: 2.120.
The others will be limited basically by the mag, although I guess the 105 could go to 2.277, I'll keep it to 2.260 max.
But that's a huge delta from hornady's 105/ammo, they call for 2.200....
go figure.
Now my resized cases measure 1.184-5" at the datum line.
The modified case, 1.182. Its OAL is 1.483.
I took 3 bullets at random out of my boxes, of the following:
90 TGK
95 SST
103 Eldx
Hdy 105 Bthp
Sierra 100 BTSP (gameking)
Bullet COAL's were consistent, with the 100 SGK differing by 0.005... 'course it has a soft lead tip and I have found these usually differing in COAL by as much as +/- 0.005
Measured OAL's, modified case and bullet to the lands, for them in my chamber are as follows.
90 TGK: 2.338
95 Sst: 2.203
103 Eldx: 2.3005
105 Bthp (this is the one in the Hdy Black): 2.277
100 SGK: 2.140
For the 2 relative "shorties" I'll probably shorten my max OAL by 0.020, 95 Sst, 2.180; 100 SGK: 2.120.
The others will be limited basically by the mag, although I guess the 105 could go to 2.277, I'll keep it to 2.260 max.
But that's a huge delta from hornady's 105/ammo, they call for 2.200....
go figure.