7mm Reg Mag Frustrations
- Thread starter TexasTB
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MudRunner2005
Well-Known Member
I think it's awesome to have a Berger liaison here on the forum. You don't see that much these days with most big companies. I think it shows the good character of their company. They started out as a small company, always willing to help their customers, and it still gives you that small company feel to get personalized help here on the forum when you need it.
Hey Mud, I have had the same experience as you with Retumbo and have always been very happy with 7828.
But I started thinking about this and decided to load some 168vld Retumbo and 215M in a new 26" Shillen SM 9 twist 7RM barrel, MAN AM I GLAD I DID.
Sorry to hijack the thread just though I would share.
MudRunner2005
Well-Known Member
I'm glad it's working for most folks out there now. I don't know if I just got a bad lot, or what happened.
TexasTB
Well-Known Member
I made it back to the 100 yard range today. Was able to get 1/2" repeatable 3 shot group with Berger 180 VLD and 68.8 g of Retumbo that was .015 off of the lands. Would like tighter spread on my velocities. Was getting 40 to 50 extreme spread on these two groups.
I also shot RL23 today. Although the groups were not as tight, the velocities were. For my 3 shot groups I consistently saw ES between 8 and 15 for 6 different three shot groups.
Probably missing something here, but isn't that basically the same load and seating depth you started with? Anything changed?
BTW, I don't think it's unusual to get better ES with a bit faster powder.
Great thread, tagging in.
Have had good success with 70.5 / 7977 in Nosler cases, with (gasp) 160 Partitions and CCI-BR2 primers. Shooting inside of 3/4 moa out to 635y with a Tikka T3 Superlite in a B&C stock. MV is definitely lower than would be with Accubond/Bergers based on MOA drop.
MudRunner, I haven't had the chance to chrono the 7977. Have you? How are the ES #'s?
MudRunner2005
Well-Known Member
I haven't had the chance to do any precision shooting in the last couple years. Between moving, working, and then looking for work, I haven't had much time. Hopefully this year I can get back into the swing of things.
