Hello slowly I am building a long range 6 xc 7.5 twist 28 inch barrel, in the mean time I am always looking for load data and starting loads varget, 4350 imr are pretty available so them or any would be great thanx and 105-115 bullets
6 xc loads
- Thread starter smokestick
- Start date
Thanks for the help
Started my 8 twist with 36 grains of H4350. Worked up to 39 grains but my accuracy node was right at 38 with a 105 VLD .02" off the lands. Primers are standard CCI's. The IMR 4350 is relatively close to the H4350 so you could probably start at the same place I did. I achieved 3050 FPS from a 26" Shilen barrel. I saw no pressure signs at all with my Norma brass.
Dan
Dan
Built my first pair of 6XC's (DPMS Lo Pro receivers with Kreiger 26" heavy 1" profile to gas block which is rifle length plus three inches and uses an 0.875" gas block and profiled at 0.875" to bore with 11° target crown, took some doimg to get gas blocks on. With Jard 1.5 pound triggers massaged to 18 ounces) and as was getting close to finished realized needed ammo but didn't want to form cases and then started pricing cases, projectiles, recommended primers, propellants, cost of a quality set of dies was going to almost have half the price of another rifle just in dies, cases and a quantity of projectiles.
Had a pair of matched rifles coming off the bench built with exact same parts down to even matching glass on top of each. Bought two fifty round boxes of Tubbs DTAC as price of brass, projectiles, primers and powder plus a boron nitride bullet coating kit was not much cheaper than the loaded ammo. Sighted both in at 200 yards firing a total of ten rounds. First five to get on target and foul the barrels then a five shot group which was just at 5/8" which for non broken in repeating rifles was a good start. Longest range I have close is 250 yards so after a couple adjustments, a good cleaning of each bore took them back out and fired two five round groups from the magazine, not single loaded and rifles were settling in and got one honest 5/8" group from each at 250 and saved my remaining rounds till got to a 1,000 yard private range.
I am not a practiced 1,000 yard shooter anymore thus reading the wind flags every hundred yards and trying to shoot consistent groups at 1,000 yards was kind of ugly but clawed my way through till owner of range who shoots almost daily at 600 to 1,200 yards asked to drive. Had 30 rounds per rifle left when went to friends range and I burned twenty from each box with best groups being around 18" and considering an average man is 20" wide and 18" from belt to top base of neck meant if a zombie stood still odds were I might just hit him at the magic thousand yards with my home built AR 10's using best components I could source.
Owner of the range settled into the drivers seat and watching his concentration as he released rounds more based on view of flags out his peripheral vision he emptied the first ten rounds faster than I could get five down range then immediately picked up the second rifle and sent ten from it. We rode down his bumpy road making my back hurt and reminding myself why I didn't drive the two hours each direction to use his range as often as I should. He placed twenty rounds from two different rifles had never picked up into a 16" tall by 12" wide twenty shot group which if threw out one shot would have been 14" × 12" from a pair of gas operated repeaters.
Both are cleaned and sitting in back of a vault and not been shot since. Ordered another five boxes of the Tubbs ammo to make once fired brass and hope to get out to the range soon as recently took delivery of a light bench rest turn bolt rifle in 6XC by my smith of many years. Has more magnification plus better clarity of scope chosen and the smith said it was a fine shooter but is holding his target till I come back with one for comparison. Once I have burned through all the Tubbs ammo have a 500 count box of the 115 grain DTAC projectiles and a Final Finish boron nitride bullet coating kit to start working on loads. Will keep an eye on this thread as empty my loaded cases the lazy man's way. Keeping the turn bolts cases segregated so only neck size for it should help it make magic.
Had a pair of matched rifles coming off the bench built with exact same parts down to even matching glass on top of each. Bought two fifty round boxes of Tubbs DTAC as price of brass, projectiles, primers and powder plus a boron nitride bullet coating kit was not much cheaper than the loaded ammo. Sighted both in at 200 yards firing a total of ten rounds. First five to get on target and foul the barrels then a five shot group which was just at 5/8" which for non broken in repeating rifles was a good start. Longest range I have close is 250 yards so after a couple adjustments, a good cleaning of each bore took them back out and fired two five round groups from the magazine, not single loaded and rifles were settling in and got one honest 5/8" group from each at 250 and saved my remaining rounds till got to a 1,000 yard private range.
I am not a practiced 1,000 yard shooter anymore thus reading the wind flags every hundred yards and trying to shoot consistent groups at 1,000 yards was kind of ugly but clawed my way through till owner of range who shoots almost daily at 600 to 1,200 yards asked to drive. Had 30 rounds per rifle left when went to friends range and I burned twenty from each box with best groups being around 18" and considering an average man is 20" wide and 18" from belt to top base of neck meant if a zombie stood still odds were I might just hit him at the magic thousand yards with my home built AR 10's using best components I could source.
Owner of the range settled into the drivers seat and watching his concentration as he released rounds more based on view of flags out his peripheral vision he emptied the first ten rounds faster than I could get five down range then immediately picked up the second rifle and sent ten from it. We rode down his bumpy road making my back hurt and reminding myself why I didn't drive the two hours each direction to use his range as often as I should. He placed twenty rounds from two different rifles had never picked up into a 16" tall by 12" wide twenty shot group which if threw out one shot would have been 14" × 12" from a pair of gas operated repeaters.
Both are cleaned and sitting in back of a vault and not been shot since. Ordered another five boxes of the Tubbs ammo to make once fired brass and hope to get out to the range soon as recently took delivery of a light bench rest turn bolt rifle in 6XC by my smith of many years. Has more magnification plus better clarity of scope chosen and the smith said it was a fine shooter but is holding his target till I come back with one for comparison. Once I have burned through all the Tubbs ammo have a 500 count box of the 115 grain DTAC projectiles and a Final Finish boron nitride bullet coating kit to start working on loads. Will keep an eye on this thread as empty my loaded cases the lazy man's way. Keeping the turn bolts cases segregated so only neck size for it should help it make magic.
Thanks for the story!
My 6xc 700 clone single shot likes Varget (yes right at the edge load 36 grains) just over 3,000fps. Have not tried other powders, it shots so well with that load. My rechambered Savage 6xc does not like that load (to hot), have not done much with it. The 700 clone trigger is about 6 ounces the Savage trigger is nothing like the 700 which means it just stays in the gun safe
imr 4350 and 115 DTAC's, limited out at 40gr on norma brass. 39gr makes the same performance as 39.5 of H4350. N550, RL-23, IMR 4166 also worked well. 4166 was a little fast but made silly velocities. N550 seemed to have the most promise of mild pressure/good velocities/group size.
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