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Tanner Offline OP
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What load did you stop at, and what COAL did you run?

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48.8gr in my rifle, .005 back and winchester brass with Federal Match large rifle primers. They do push back a little harder than the 87's, but still not a recoil issue. Hodgdon listed 49gr as max, but my rifle liked 48.8 better. 49grs did not show any pressure signs, but you could definetly here powder crunching when seating bullets. T.S.

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Did you actually measure your length or just distance from lands? I'm just interested if you seated em to where the base if the bullet was above the neck/shoulder junction.

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I did, but I am at work and don't remember, I will have to get back to you on that one. I would say that the base of the bullet is right at the neck shoulder junction though. T.S.

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Right on. For me, that puts my COAL at 2.81. Im gonna pick up a can of Retumbo today.

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Tanner Be sure to post some results. Im in the process of loading some 105VLD and retumbo in my 243AI and will try to shoot them this weekend. RL22 has worked well for me also.

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I just loaded up some with Retumbo- 3 each at 48, 48.5, and 49 grains. Depending on which shoots best, I'll go in .2 or .3 increments above and under it to see if I can really tighten it up (unless one of em shoots lights out wink ).

I'll letcha know on this thread.

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Tanner just a little advise. Retumbo is not 243 powder even with the heavies.
I have a 6mm-284 that has quite a bit more case cap. than a 243 and it is still way too slow of a burn rate.
RL22 is about as slow of a burn rate that is realistic, my favorite in the 243 with 95-105gr bullets is IMR4831.
Right now on this forum many are gacking allover themselves that RL17 will do anything...it is a much better choice than Retumbo.
VVN160,RL19,H4831, hell even JB's TAC that he claim's you will never need to clean for the life of the barrel is a better choice than Retumbo......you've been gettin bad advice

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I didn't get recommended Retumbo so much by members as the Hodgdon website. It listed Retumbo as one of the top velocities with one of the lowest pressures. I realize it's normally reserved for big fire breathing magnums- but I think it's worth a try. My initial testing today shot pretty well, about an inch and it was kind of throw down and shoot prone thing. I am going to give the charge a try with magnum primers to see if it tightens up at all.


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On a separate note... all the loads that have shot well have shown the old "2 in one hole, 1 about an inch apart" thing. Any ideas as what this could be, other than the nutjob yanking on the trigger.

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Seat the bullet deeper.

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+1 on the dirty factory rifle. I cleaned a couple of my rifles brand new and found iron powder and really black stuff, very gritty. This was from Savage and the worst one was from a Remington.


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Sorry for the "bad advice" Tannergun. I love when someone knows before they try something. The load works for me and gives top speed with low pressure. It is an odd powder for the 243, but it works well for what we are doing with it. Hope you find one that shoots lights out, I think we going to shoot this weekend so I will have another report Monday. T.S.

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Jordan I read AussieGunWriters thing on bullet seating and tried the seating depth Hodgdon recommends and saw basically the same thing. I'm thinking maybe a free float, or I just need to shoot better wink

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Bowman I should've asked you, do you run mag primers under Retumbo? I loaded up some for comparison against LR primers, I'll have to see how it goes.

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No I haven't and I am curious to how it will work, let me know. T.S.

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I read on the OCW website that a mag primer is needed. May need to ditch Economics to try it out wink

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Originally Posted by TannerGun
Jordan I read AussieGunWriters thing on bullet seating and tried the seating depth Hodgdon recommends and saw basically the same thing. I'm thinking maybe a free float, or I just need to shoot better wink


Yeah, a free float may just do the trick wink

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But... How the heck do you free float a POS ADL stock. I thought about a little bit of card stock shim...

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Sand paper, an appropriately-sized deep socket to wrap the paper around, and a little bit of elbow grease...

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