7mm Remington Magnum reduced loading

[dolek]

No filler needed ...only adds one more variable,that can get dangerous if done incorrectly.

 

[Webphut]

I just went through the same thing as I have become recoil sensitive to my normal 7 mag load. I found several reduced loads. Most focus at the 140 gr bullets, but I found some that go as low as 115 gr and 120 gr bullets. Off the top of my head, H4895, Trailblazer, 5744, and there are a few others. Most of these loads though are from 30-40 years ago and have been removed from the books. So I googled reduced loads .pdf and found some old magazine articles with recipes. Now for the heavy bullets that you mention, slim pickings.

The trailblazer load caught my eye as its muzzle velocity is as low 1700 compared to the more common 2000-2800 range. That’s getting down to .243 win recoil.

I will post them up on here for you tomorrow.

Ok here is some stuff I found for reduced loads for the 7mm Remington Magnum.

http://globalsportsman.com/full-art...ctive-loads-mels--for-young-shooters--hunters

 

[Webphut]

I have a few more, but not letting me upload for some reason.

 

[MihiT]

Corn meal was another old-timey recommendation for filling cases.

 

[Webphut]

If you go to loaddata.com, they have many reduced loads.

 

[centerlineseal]

I'm currently working my way up with a powder ladder test for the same bullet. Mid 1970 700 BDL, capable of 1/2 moa with Nosler 150 Solid Base (hard to find these days) IMR7828 (I've previously used IMR4350 for a 7mm RemMag) 62.0 to 66.0 grains IMR7828 paying attention to pressure indicators. Should get a 300 yd ladder this weekend, depending on rain.

Won't be reduced load, but will give some indication of a powder node. I'll let you know.

Rained all weekend, ... no new data.

 

[AckleymanII]

I tried using the Dacron filler, spiked pressures tremendously! There is a learning curve associated with the Dacron and reduced loads relating to the 7 Mag, IMR 4064, 140's, and standard 9 1/2 primers. I had trouble getting the bolt open on a couple of shells. I went to magnum primers and all issues were solved.

 

[Rdlningcltchdmpr]

Seeking info from those who have worked with reduced loads for 7mm Remington Magnum.

I would like to develop an reduced recoil accuracy load for the Berger 168 VLD-Hunting bullet for my Remington 700 Sendero. The the Berger manual shows 57gr H4831 as a start point achieving ~2600 fps. My objective is to find an accuracy load with less recoil that will still do the same job as the .308 Win. from 20" AR (i.e. 168 gr bullet at ~2600 fps) as a multi-purpose hunting round that won't loosen my teeth.

I am wondering if one needs to use the same caution at the low end of the charge weights as the high end, as I do not want a chamber kaboom from an unexpected pressure spike from a reduced charge.

thanks.

I can tell you that the best combo bullet/ powder is 110ttsx barnes . Remember light bullet's kick a lot less. And for powder i recommend 5744. It is so good at reduced loads , it's the best. I have used it in many cartridges with light bullet's and where no load data exists i just load around 60% case capacity for top speed , and less if you want lower speed. If you look at all the load data that is available. You will see the top loads with light bullet's are usually around 60% case capacity. It has worked great for me with no excessive pressure signs yet and i have tried many.

 

[farmerjohn]

I can tell you that the best combo bullet/ powder is 110ttsx barnes . Remember light bullet's kick a lot less. And for powder i recommend 5744. It is so good at reduced loads , it's the best. I have used it in many cartridges with light bullet's and where no load data exists i just load around 60% case capacity for top speed , and less if you want lower speed. If you look at all the load data that is available. You will see the top loads with light bullet's are usually around 60% case capacity. It has worked great for me with no excessive pressure signs yet and i have tried many.

This is good advice, been there done this and it works, 5744 is great stuff for this sort of thing...

 

[Murray Brook]

175 gr Hornady Spt, CCI-250 , 40 grs of IMR-4064. Friend of mine uses this reduced load and really likes it. From Ken Waters Pet Loads Vol- 1.