Looking for G7 on Sierra 183 MK
- Thread starter venatic
- Start date
Kyle Schultz
Gold $$ Contributor
As an estimate, using the JBM calculator, I came up with an average G7 of 0.358. Berger lists the G7 for the 180 Hybrid to be 0.349. However, if comparing the 2 bullets, I would not take anything to the bank just yet until BL has tested the Sierra 183 in the same manner as his previous assessments and reports his results.
Bryan Litz Ballistics
Site $$ Sponsor
Just placed order for these bullets, will test and report.
-Bryan
-Bryan
One can estimate a G7 ballistic coefficient from Sierra's banded G1 coefficients that should be as accurate as Sierra's G1 numbers that go into the computation. Taking this approach, I come up with 0.359 (out to 1100 yards), which is surprisingly close to kyle76092's number. This is probably about as good an estimate as will be available until the G7 is measured directly by a reliable source. Sierra has a good history of reliable BC measurements, so I'd expect it to be within a couple percent of numbers others come up with.
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