Over the past few weeks, I surveyed over 100 shooters who competed in this year’s Nightforce Extend...
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Cal Zant did a great writeup on 2020 Nightforce steel Challenge cartridges. Cant say that one is necessarily better than the other.
I went with the 300 Nancy and haven't looked back. The Lapua brass is awesome. After 8 firings I finally had to bump the shoulders back and trim the case a little. I can certainly get pressure. Ive tried H1000, Retumbo, and H50BMG.
Best load for me at the moment is
250 grain Hornady A tips Lapua brass
Base to Ogive 2,884 (jump 0.020”), case length trim 2.485”
necks .3365”-.3375”, 87 g H50BMG
5 shot average 2827fps, ES 26fps, SD 10.5fps
temp 82*F, 28.58 inHg, alt 1440ft
0.7 MOA @ 100 yards, recorded with magnetospeed
Ive had 88.5g H50BMG pushing the 250 ATips to 2885fps but the SD went to 13fps
Would love to try some VV N570 but cant find any.
Additionally I bought some Berger ammo and disassembled a cartridge and recorded my results.
Berger 300 Norma Mag 215 hybrid Ammo Part No. 65-62020
Base to Ogive 2.839”, 81.7 grains unknown powder, Lapua brass
5 shot average 3050fps, ES 27fps, SD 10fps
temp 60*F, 28.56 in Hg, alt 1500ft
All bullets were in the same hole @100 yards , recorded with chronograph
Berger 300 Norma Mag 230 OTM Hybrid Part No. 65-62010
Base to Ogive 2.774”, 79.4 grains unknown powder, Lapua brass
5 shot average 2908fps, ES 31fps, SD 11fps
temp 61*F, 28.54 inHg, alt 1500ft
.5MOA @100 yards, recorded with chronograph
Im running an SRS A1 with a SAC Bartlein 1:8 28"