MagnumManiac
Well-Known Member
G'day all,
Just returned from an interesting weekend of hunting in dubious thunderstorms, sighting in and testing a few cartridges in recently finished or built rifles I haven't had a chance to do for some time. Very happy with my new Rem 700 Sendero II 300WM, put 5 shots into one ragged hole with shoot 1 and clean for 2 lots of 5 shot strings.
Still can't bring myself to shoot that custom shop Rem 700 5R I picked up cheap. LOL.
Friday and Saturday were set aside for deer hunting, I passed on a young chocolate Fallow deer doe as it was too small and, that was the only deer I saw within shooting range unfortunately.
Anyway, I decided to run some ammo over the chrono starting with my new 300 RUM.
This is where the interesting side of things took place. Set up my Chrony and made sure it was level and square to line of sight, fired a known load with my 300WM and all was tracking as it should be.
Tried the Barnes 165g TTSX bullets first, got 3383fps, 3385fps & 3368fps thinking this is good, the box says 3360fps.
Then went to the Barnes 180g TTSX and proceeded to get 3081fps & 3112fps. I stopped there as the box says 3250fps.
This has me bewildered, as normally I find my own loads do not vary this far from published data. I do not normally use or test factory fodder, so this has me puzzled as to why the 165's are close to advertised but the 180's fall so short of the mark.
In this to be expected?
Anyway, it's not a real bother to me, it will still kill deer just as dead, just curious I guess.
Cheers.
Just returned from an interesting weekend of hunting in dubious thunderstorms, sighting in and testing a few cartridges in recently finished or built rifles I haven't had a chance to do for some time. Very happy with my new Rem 700 Sendero II 300WM, put 5 shots into one ragged hole with shoot 1 and clean for 2 lots of 5 shot strings.
Still can't bring myself to shoot that custom shop Rem 700 5R I picked up cheap. LOL.
Friday and Saturday were set aside for deer hunting, I passed on a young chocolate Fallow deer doe as it was too small and, that was the only deer I saw within shooting range unfortunately.
Anyway, I decided to run some ammo over the chrono starting with my new 300 RUM.
This is where the interesting side of things took place. Set up my Chrony and made sure it was level and square to line of sight, fired a known load with my 300WM and all was tracking as it should be.
Tried the Barnes 165g TTSX bullets first, got 3383fps, 3385fps & 3368fps thinking this is good, the box says 3360fps.
Then went to the Barnes 180g TTSX and proceeded to get 3081fps & 3112fps. I stopped there as the box says 3250fps.
This has me bewildered, as normally I find my own loads do not vary this far from published data. I do not normally use or test factory fodder, so this has me puzzled as to why the 165's are close to advertised but the 180's fall so short of the mark.
In this to be expected?
Anyway, it's not a real bother to me, it will still kill deer just as dead, just curious I guess.
Cheers.
