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Thread: Need help with some reloading...
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October 21st, 2020, 08:20 PM #1
Need help with some reloading...
So I’m loading for a Remington 7600 270win a Tikka t3 lite 7mag and now my new Weatherby 7-08Rem. I’m doing well with the 7mag with RL22 and IMR7828 and just grabbed a pound of 7828ssc to try. I only put my first rounds through the 7-08 today so not too concerned there yet but my 7600 with factory Rem Core-Lokt 130gr put 2 shots touching at 200yds the third wasn’t fired cause they touched and that’s awesome!!! I started loading with H4831 and did a ladder test for accuracy only since I don’t have a chrono and got about 1.25” at 100. I tried H4350 and RL17 since I have a 22” barrel and wasn’t impressed with either. I tried RL16 a few weeks ago with good accuracy but nothing better than the 4831. I’m shooting hornady sst130, Sierra 130 boat tail, Nosler Accubond 130. I have partitions in 130 and interlocks in 130 and 140. My seating is at 3.26 for all so far. Any help to try and get it under 1”
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October 22nd, 2020, 08:14 AM #2
Re: Need help with some reloading...
Klutch, enjoy your enthusiasm. Sounds like you're doing good.
On the reloading side different primers or adjustment of COAL may make a difference.
Did you measure the chamber to determine initial COAL?
And old time saying is 10 shot groups don't lie. This will help determine if it's the load or the rifle that needs tweaked.
Just wanted to add I haven't touched a 7600 for a few decades but would of been satisfied with a 1.25" group then.
Learned about a scope cut with one of those off the bench.It ain't what they call you, it's what you answer to.
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October 22nd, 2020, 10:04 AM #3
Re: Need help with some reloading...
A Chrono is an invaluable tool for load development. The Factory ammo has a 3060fps muzzle velocity according to Rem,
and your powders will need almost a max charge to garner that same speed. According to the Hodgdon site, your IMR 7828
should be a good choice to get the speeds up. Have you measured/verify barrel twist rate? You may want to work up some
of the 140gr loads if the twist rate is faster than what the 130s want.
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October 22nd, 2020, 05:07 PM #4
Re: Need help with some reloading...
Haha. I learned about it with a Remington ADL in 243 going prone only about 5 years ago. I*m happy with the load/Gun for deer but I think it should shoot better even by a small amount. It also could be me my eyes are a little more fuzzy so maybe my shooting isn*t so Annie Oakley these days. I did measure the chamber with a fired case and a lose fitting bullet but I think I*m gonna seat them to book and gradually push them out if groups open up. If I remember right many years ago I loaded all my 270 to 3.23* no matter what I fired it from. I started using Rem 9 1/2 and now I*m with federal 210 I have cci and Winchester and even some magnums so I can switch it up. I appreciate the info
I*ll admit I didn*t load to max on anything yet not for any other reason than if I got good accuracy I was leaving it there since it*s for whitetail only and paper hinting until season hits. My 7600 is 1/10 twist and should stabilize 130 and 140 and 150 bookies. I*m still experimenting with some combos so time will tell
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October 22nd, 2020, 06:28 PM #5
Re: Need help with some reloading...
Just for grins and giggles give the Norma reloading data a look and see if it looks promising. I use Norma MRP for my 6.5X55 S.E. and with both Sierra and Hornady 140 gr. bullets exceed the "book" velocity without hitting the max load.
Last edited by Brick; October 24th, 2020 at 06:24 PM.
"Those who can make you believe absurdities can make you commit atrocities".
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October 24th, 2020, 03:35 PM #6Super Member
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Re: Need help with some reloading...
Try more bland bullets. The new "Super bullets" tend to fly with less accuracy. Anything I load for deer gets Remington Corlokt bullets if available. Hornady soft points after that. I have a 7x57 that I shoot Remington 140 gr PSP Corlokts out of and it is awesome-way more accurate than I can shoot. I am not overly impressed with bullet performance on some of the newer designs either.
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May 7th, 2022, 11:20 AM #7Grand Member
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Re: Need help with some reloading...
Primer flow
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May 7th, 2022, 11:25 AM #8Grand Member
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Re: Need help with some reloading...
You didn't happen to get these from a competition shooter did you ? it is common when people load hot to make a power factor.
primer becomes liquid for a monent and flows into the firing pin hole.
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May 7th, 2022, 02:35 PM #9Grand Member
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May 7th, 2022, 05:39 PM #10Grand Member
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Re: Need help with some reloading...
sigh
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