01-02-2018, 04:14 AM
Folks,
New to forum. New to 6.5 Grendel. Not new to handloading. I recently purchased a new CZ-527 6.5 Grendel and mounted a Leupold VX-R 3-9x40 scope. After reasonable break-in, I could not get a group under 2", with most groups at 2.5". I tried the Wolf and Hornady 123 ELD factory loads. After that, I tried a few loads at both ends of the bullet weight spectrum (new Hornady brass and WSR primers): 85 Sierra HP + 29.5 - 30.5 Benchmark and 129 Hornady SST + 25 - 26.8 Varget. I was able to get 1.5" groups with the 85 and 30.5 Benchmark and 129 SST and 25 Varget. Definitely not satisfying. In frustration, I found this forum and thread. It was very informative and I thank everyone who has contributed to it. On the experience of others here, I loaded 123 ELD and 30, 30.5, 31.2 CFE233 (a favorite powder of mine for 223) and a COAL of 2.260. The attached picture is a 5 shot group with 31.2 CFE223 at 100 yards. No signs of overpressure on the primers. I sunk the first two through the same hole up top. So, 4 + 1 flier. Unfortunately, I left my chronograph at home. Altitude 341 ft, Barometer 30.5, Temperature 28 degrees, relative humidity 32%, 9 MPH wind.
Thanks again to everyone who has posted their load data. Happy New Year.
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New to forum. New to 6.5 Grendel. Not new to handloading. I recently purchased a new CZ-527 6.5 Grendel and mounted a Leupold VX-R 3-9x40 scope. After reasonable break-in, I could not get a group under 2", with most groups at 2.5". I tried the Wolf and Hornady 123 ELD factory loads. After that, I tried a few loads at both ends of the bullet weight spectrum (new Hornady brass and WSR primers): 85 Sierra HP + 29.5 - 30.5 Benchmark and 129 Hornady SST + 25 - 26.8 Varget. I was able to get 1.5" groups with the 85 and 30.5 Benchmark and 129 SST and 25 Varget. Definitely not satisfying. In frustration, I found this forum and thread. It was very informative and I thank everyone who has contributed to it. On the experience of others here, I loaded 123 ELD and 30, 30.5, 31.2 CFE233 (a favorite powder of mine for 223) and a COAL of 2.260. The attached picture is a 5 shot group with 31.2 CFE223 at 100 yards. No signs of overpressure on the primers. I sunk the first two through the same hole up top. So, 4 + 1 flier. Unfortunately, I left my chronograph at home. Altitude 341 ft, Barometer 30.5, Temperature 28 degrees, relative humidity 32%, 9 MPH wind.
Thanks again to everyone who has posted their load data. Happy New Year.
[ATTACH=CONFIG]10656[/ATTACH]

