I don’t know how I missed the posts about IMR4064 temp sensitivity... I have some chrono data from the same load at 45 and 90 degrees, but it’s on an old phone, so I’ll have to dig it out and see what it says.
That will be interesting to see
JTD
Turns out my old phone got factory reset for my son to use, so that’s lost now... all I have is what got put into strelok, which is 2815fps at 59 and 2822fps at 66, so it looks like it’s going to figure roughly 1fps per degree of temp change (with my rifle, your results may vary).
Thanks for posting that!
I got some time yesterday and put together 40 rounds of 7mm-08 for my friends rifle. Resized about 50 6mm Rem cases, and recalibrated an older RCBS scale to give to the next guy I’ll help get into reloading.
Headed out to go find some prairie dogs now!
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Here's what little data I managed to keep![]()
That’s still an interesting tidbit.
JTD
Got my 6.5-284 brass trimmed tonight. Sometime this weekend I’ll start sizing the 7x57 brass. That’s the last of my brass that needs prepping for now. Time to start loading up some test loads after that.
JTD
Got out this morning to harass prairie dogs. Shot about 40-50 rounds. Hit probably 20. Started with my head up my rear slinging shots out and not paying attention to wind or accurate range. Changed to the .22 and went for a walk while the barrel cooled. Hit 4 or 5 with that and then went back to the .223. Started hitting after that and reached out and hit one at 265. That was the longest shot of the day. Hit a few more under 150 then went 5 straight out to about 160 including at off-hand shot at about 40. Hit and missed a few more and then connected with two more at just over 200 as I packed up. Not too shabby with a pencil barrel Savage .223 and a fuzzy BSA 3-9x40. Need to upgrade the scope on this rifle.
I wish I would’ve taken some pictures, but I didn’t. I did alright too. Some decent carnage with 55gr Nosler Varmageddon HP’s.
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Last edited by Jbotto; 07-04-2020 at 11:18 AM.