Been lurking for quite some time, just never have had any input due to not being as experienced as most of the forum. So I have been trying to learn as much as I can before posting. Have only been handloading for ~4 years. Currently I load for 30-06, .270 Winchester and 6.5 Creedmore.
The question I have been studying, is which load to proceed with for my 6.5CM.
41.7 is pretty much dead center with only a 17FPS spread between 41.5 and 41.9 with a .62 inch 5 shot group. The group above and below the 41.7gr. charge are sub MOA as well. Concern would be the 13.8 SD.
41.8 very similar group size; however the SD is less than half. I just do not have the comfort level of a second sub MOA group above with the 42.9 charge.
OCW would point to the 41.7 as it is a larger window.
The Chrono method would point to 41.8 due to the SD
H4350 / CCI400 Primers / COL 2.2215 (Ogive reading) / Hornady 140 ELD-M / 4X Fired Lapua brass
5 Shot Average
Charge - 41.5 41.6 41.7 41.8 41.9
Speed FPS - 2730 2730 2737 2741 2747
SD FPS - 10.2 15.3 13.8 6.1 5.5
Group Inches - 0.79 0.8 0.62 0.65 1.1
What say the masses? Any input would be appreciated.
Scrupplez
The question I have been studying, is which load to proceed with for my 6.5CM.
41.7 is pretty much dead center with only a 17FPS spread between 41.5 and 41.9 with a .62 inch 5 shot group. The group above and below the 41.7gr. charge are sub MOA as well. Concern would be the 13.8 SD.
41.8 very similar group size; however the SD is less than half. I just do not have the comfort level of a second sub MOA group above with the 42.9 charge.
OCW would point to the 41.7 as it is a larger window.
The Chrono method would point to 41.8 due to the SD
H4350 / CCI400 Primers / COL 2.2215 (Ogive reading) / Hornady 140 ELD-M / 4X Fired Lapua brass
5 Shot Average
Charge - 41.5 41.6 41.7 41.8 41.9
Speed FPS - 2730 2730 2737 2741 2747
SD FPS - 10.2 15.3 13.8 6.1 5.5
Group Inches - 0.79 0.8 0.62 0.65 1.1
What say the masses? Any input would be appreciated.
Scrupplez