Ok so updating this thread. Have ditched the speer 165btsp and loaded the speers 165gr HCSP(federal blue box bullet). 45gr of 2208 loaded to 2.75" coal has these shooting sub inch @ 100m with the same POI as my remington corelokt factory rounds then by using my ballistics calculator worked out my 168eldms are zeroed @ 250 so pretty happy. Need to shoot the speers at distance to verify speeds but guessing 2600-2630 which means they are good on reds/rusa size animals out to 400m~ which will cover basically all my hunting.
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