this morning i loaded up some 250gr hornady RN on top of 60gr of RL15. accuracy is just an inch. could probably be better but it was 88 degrees and i was sweatin my sack off and wasnt really shooting to my normal ability. my crony was in the shade, about 15 feet off the muzzle and i was reg. an average velocity of 2420fps from my 18.5" barrel. ive read enough from the guys on here who DO know that 2400fps w/ the whelen w/ a 250gr bullet is more then enough wallop. however i just cant get past wanting to achive the 2500/2550 mark w/ the 250's.
i was told that since i have a carbine length bbl that IMR3031 may yeild more velocity then r15 since its a slightly faster burning powder. does this seem right? also, i had some 250 horn. rn loaded w/ 54gr of IMR4064 that was reading around 2300fps and some 225gr nos. pt w/ 59.5gr of r15 at 2500fps.
also, would the extreme humidity and heat give false readings on my crono? thanks in advance for any input.
-Brandon
............Brandon,,,,,,,,,,
Why is there such a need for you to move a 250 grainer @ between 2500 and 2550 fps?? Your rifle is what it is. So if it cannot move a 250 that fast, then why not go down to a 225 where you will get 2500-2550 fps? Something in the field that a 250 will do that a 225 could not?
Secondly. Which ever powder or powders listed that offer the best speeds from a longer barreled 35 Whelen, will also give you the best speeds from your shorter barrel. This business that faster burning powders offer better speeds from the shorter barrels is an assumptive myth which somehow/somewhere got started.
But in terms of getting the better bullet speeds, you reload your 18.5" barreled carbine as though you owned a longer barrel.
