I just wanted to add some of my findings to this conversation. All of my data has been collected using a caldwell ballistic chronograph. I bought my Zastava M70 Left Hand 9.3x62 after my father got a CZ FS in the same. I love the capability of this round and the more I reload, I realize that it may be one of the best cartridge cases that uses this bolt face. I WORKED UP TO ALL OF THESE LOADS, PLEASE DO THE SAME!
Privi Partisan Brass 77.1gr H2O virgin brass 77.6gr H20 fired capacity CCi 250 primer 65gr Ramshot BigGame 3.293" OAL 286gr Swift A-frame 2543fps -probably above maximum slight click on bolt lift
Privi Brass CCi 200 65gr Ramshot BigGame 3.293" OAL 286gr Swift A-frame 2506fps- no bolt click and all holes touching -$$$- (I found that after 4-5 firings the primers were still tight but I needed to bump the shoulder back 0.002" to eliminate hard close and open of the bolt)
Privi brass CCi 250 65gr Ramshot BigGame 3.300" OAL 270gr Speer 2523fps- within 1MOA POI from Swift groups and <1MOA precision
Privi brass CCi 200 65gr Ramshot BigGame 3.293" OAL 285gr Norma Alaska 2473fps- very accurate bullet- my rifle really likes it.
As a note, I tried the Nosler Partition 286gr as well and it was not quite as accurate for me but hovered just around 1MOA with the 65gr Ramshot load
Here is where I did a lot of math and inferring- please work up loads to this level (I started at 64 grains) CCi 250 285gr Norma Alaska Bullet 3.362" OAL (this leaves 0.326" bullet shank in the neck and increases case capacity 1.85gr versus 3.291" OAL") 68gr Reloder 17 2530fps - I took my largest deer ever with this load. He dropped in his tracks at a high shoulder shot 167yds.
I wanted to try the better BC 250 bullets so I got both barnes TTSX and Nosler Accubond I noted that even at the highest powder charges the recoil was significantly less with 250 grain bullets
Privi brass 192.7gr wt 3.465" = maximum OAL to lands Maximum magazine length 3.390"
250 Barnes TTSX 60.5gr Varget Winchester LRP 2530fps very accurate low SD -much slower than expected 3.385" OAL
250 Barnes TTSX 65gr CFE223 - (I started at 61.5gr- 2524fps and worked up to 65.5- 2649fps all primers were round) CCi 250 2629fps ES-10fps just over 1MOA
250 Barnes TTSX 65gr CFE223 WLR primer 2645fps ES-31fps just over 1MOA (2 touching 1 out)
250 Nosler accubond 65gr CFE 223 WLR primer 2620fps ES-12 2.765" CBTO (using 35 cal ogive die)
Going forward, I am going to have my stock bedded and will be working with the Alaska bullet and the Nosler Accubond bullet exclusively. I hope to hunt Elk or Mule Deer this fall with this rifle and its 3-9X40 VX-r scope. Sorry for the long post but I hope that people can draw info from my experiences.
