If you shot a 260 before going to the ackley case you will appreciate the 40 degree shoulder and less case taper makes the case very stable way less brass flow only trimmed after 7 firings and that was to uniform to same length, now when I hammered a 260 cases grew like weeds and doughnuts started forming after 5 firings. Throat for more freebore and make use of your case volume. yes I'm bias toward the 260ai
260 Ackley Improved Load data and velocity information
- Thread starter Cedarcreek
- Start date
I use N-160 and h-4350 with 142smk would be shooting more combinations if they were more readily available, what barrel and twist you using. keep us posted on your results, best of luck.
Fast14riot
Gold $$ Contributor
On my previous barrel (26"), my most accurate load was 47.3gr RL23 under a 140VLDT going 2975. Used Peterson srp brass, and a 205m. Just got my new 30" barrel spun up, should have it ready to go in the next few weeks and will start a little under the previous load and work up.
What freebore is your reamer and coal. Thanks
How long is your barrel? Is it a 8 twist?
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