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Originally Posted by TATELAW
Originally Posted by 16bore


[quote=JGRaider]I'd suggest working up to 68g of RL22.


RL22 isn't listed in the manual for the 150s so where would you suggest I start? 65? 66?


I'd start at 65 myself. You should reach 3100 easily. My 7mag loads with R22 seem to like being pushed a bit. 140's worked best at 69g, 150's in the 67-68 range, and 160's at 66.5.

Bob's H4831/69g JOC load rocks in my Tikka 7mag with 150 BT's.

Last edited by JGRaider; 03/16/15.

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Handy thread!
I,m surprised I don't see any mention of anyone using Win Supreme 780 in their 7RM's. Wonder why? Availability perhaps, which is how I came to buy 5 cans of the same batch some years ago and am still working my way through it. At the time I had a stainless all weather Hawkeye and had worked-up a good load with Reloder 22, but when that ran out I couldn't find more anywhere in Melbourne. Tried AR2213SC (H4831) and got good accuracy but with velocity not much better than I was getting with my .280Rem. Couldn't get AR2217 (H1000) to perform up to expectation either. The Supreme 780 delivers good velocities and accuracy, and with ( so I am told!) the side benefits of a more even pressure-gradient, and a lower flame temperature for reduced barrel-erosion. Sounds like a sales-pitch, doesn't it!
The load I used in the Ruger with 24" bbl:
Norma cases
160 NAB
Rem 9 1/2 M
65.5 gr Win Supreme 780
.030" jump
MV= 2998 f/sec
Hodgdons list 65.7gr max. I could interchange 160 NPT without any POI change at 100 yds. Accuracy to .34", but realistic average 1.1 MOA. Shot a lot of game with this load- Sambar, Red deer and Fallow.
Now using a Sako M85 c/w 24.8"bbl with same components, but with 1/2 grain less powder (65gr), for MV3020 f/s.
I guess there is a good reason why Winchester use this powder in their Supreme factory loads! Anyone else tried it?
Cheers,
John

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I haven't used W780 and have to admit Winchester rifle powders aren't as popular as some other brands here in the states. I have noticed though shooting some Winchester Supreme factory ammo through my Sako 85 7mmRM that I got excellent accuracy and better velocity than I can sometimes handload. I've been wanting to try 780 ever since I shot those factory loads-150 Silvertips.

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Originally Posted by Dirtfarmer
Great shooting, Tanner.

I wish I had better access to a 1K yd. shooting range. At my deer camp, there is a 1K yd. range, but it's nearly an hour from my house; takes time to travel, set up, shoot and return.

I can shoot 100 yds. behind my house.

DF


I can shoot up to 1500 yards of my back deck.

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During the powder shortage couldn't find any reloader 22 but reloader19 worked well with 140 gr barnes. Bumping 3200 fps and solid 1/2 moa. 3.260 coal cci250.

4350 performed well also.

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175gn Woodleigh Weldcore over 64gn of IMR4831 for 2944fps. This load is very accurate in the .6-.8MOA range in my rifle.


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Originally Posted by gemby58
Originally Posted by Dirtfarmer
Great shooting, Tanner.

I wish I had better access to a 1K yd. shooting range. At my deer camp, there is a 1K yd. range, but it's nearly an hour from my house; takes time to travel, set up, shoot and return.

I can shoot 100 yds. behind my house.

DF


I can shoot up to 1500 yards of my back deck.

That's truly a blessing. Enjoy and don't take it for granted...


Bob,

Excellent piece on the 7RM, as always.

DF

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Anybody tried IMR 7977 with the heavier bullets?

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Originally Posted by JGRaider
I'd suggest working up to 68g of RL22.


Thanks for the suggestion. It was just what I was looking for. Worked up to 68gr then started playing with seating depth. Ended up with a 1/2 inch group at 3100fps(ES of 7). Gotta load up some more at that depth to see if I get the same results, but I'm optimistic.


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Anybody tried Ramshot Magnum in the 7mm Rem. Mag.?

Thanks


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160 Nosler Accubonds
60.5 gr IMR4350
WLR primers
Remington brass
0.07 jump
2904 fps
Rem700
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smirk

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Last edited by DesertBighorn; 06/13/15.

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66g of R22 under a good 150-160 in R+P or WW brass lit by 215s is always my starting point(and usually the ending point) for every 7RM I work loads for. I've dabbled with many other combos, but that one just plain works more times than not. It's kind of like 60grns of H4831 under 130s in the 270Win.

When 22 is not available, 67g 7828 is a good sub.

For 140s, my go-to load is 69g of H4831.

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Often overlooked but a great all around lood for longer ranges and elk is the Sierra 175 Gameking burning 70 grains of Retumbo for 3k.

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Ditto on the Retumbo and 175 gr pills. I burn 69gr of it under a Hornady Spire point. Routinely puts up 1/2" groups.


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180 vld with 70.2 retumbo in hornady brass with 215M primers... yields 3040 fps. This load holds under 1/2 moa out to 1000 yards if I do my part.


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Shot my Voere in 7mm rem mag yesterday at the range.
66 gr RL22 and 162 HornadY SPBT at 3075 fps and .65" almost perfect equilateral triangle. First day out with it and done.
BTW the set trigger? That is the cat's meow!!

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Anyone use the 162 SST on elk?


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I would not do it. I had them dynamite on small deer in a .308. There are much better elk bullets.

I am a fan of Re 25 and 160 Partitions at 3000ish fps. I did try some Re33 though, and it was impressive in my 26-inch barrels. With 175 Interlocks, I got half-minute accuracy and over 3000fps. I used .5 grain under the Alliant max. It was also very impressive with the 160 Partition.

If I ever change loads, Re 33 will be it. I need to test it with some 140-grain Partitions.


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Originally Posted by sbhooper
I would not do it. I had them dynamite on small deer in a .308. There are much better elk bullets.

I am a fan of Re 25 and 160 Partitions at 3000ish fps. I did try some Re33 though, and it was impressive in my 26-inch barrels. With 175 Interlocks, I got half-minute accuracy and over 3000fps. I used .5 grain under the Alliant max. It was also very impressive with the 160 Partition.

If I ever change loads, Re 33 will be it. I need to test it with some 140-grain Partitions.


This is interesting.




The 280 Remington is overbore.

The 7 Rem Mag is over bore.
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