7mm RM powders of choice

So I started reloading for 7mmRM 6 months ago and it's time to stock up again on components and want to try that greener grass on the other side.
ADI 2225 was what I used last time going off ADI's rifle loading data.

Who uses ADI 2217 or Reloader 26?

I'm either going to load 162gr a-max or 180 gr Berger so I need a powder suited for a heavier projectile out of a 24" tube.

also if anyone here has any other good experience with other projectiles for tahr it would be interesting to hear.

Last load was with 154gr SST in front of 2225, shot really well and kills tahr very well. but again there might be a better round out there and that's the fun of hand loading.

Feel free top chime in.

I would have thought that 2225 behind a 180gn Berger would be a good start.
I'm using 2225 with a 180gn hybrid VLD Berger. But also have a load of 2217 with similar speed.
Haven't had a chance to check which is most accurate and consistent load

Found 2217 gave the edge with 162 amax 2225 was winner in heavier weights

2217 gives up good velocity and outstanding accuracy in my 7mm Mag, pushing 180 Berger VLD's at 2900fps with 70gns, 3050 with 73, VLD's kill shit deader than dead!

3050 with 180s is cranking

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Originally Posted by distant stalker

3050 with 180s is cranking

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At both ends!

Attachment 39433

Screenshot from another forum showing quick load data shows 3038 with 2225

168g burger vld and 71g of 2217 worked great in my 2 7mm at around 3060fps

I'm surprised with those velocities out of a 27" barrel,
I do wonder if the powder choice would be different in such a long barrel like that.
Alliant's website give really good velocities with the A-max out of a 24" tube like mine.

The one problem I had with 2225 in the last load was I couldn't fit enough powder into the case, It was pretty chocker with a large amount of compression and I reckon I never would have been able to get pressure signs. the powder is just too fat.

Like @distant stalker said. The 2225 powder is better with the heavier projectiles or already that's what I have found.
I have a 7/300wsm (different obviously, but very similar in internal capacity), I have found my upper limit with the 2225 and a 180 berger. The load is slightly compressed from memory.

I used to use 2213sc with lighter .277" projectiles in the 270wsm

71g of 2225 was the ripper for me with 162 Amax's, just cruising @ 2950fps outta a T3 :)

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Originally Posted by lost

71g of 2225 was the ripper for me with 162 Amax's, just cruising @ 2950fps outta a T3 :)

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I got really accurate 162 A-max and 140 Barnes TSX with virtually the same point of impact out of my 7RM using moderate loads of IMR 7828 and was difficult to choose a best load out of the ladder I shot intially as there was a really nice wide sweetspot.

Just my 2c.

Well I guess I should go with the A-max I guess and 2225,
My goal is to get 3000fps with a hefty projectile. also though the 180gr Berger is the business i think the 162gr Hornady will get the job done and be considerably cheaper, I might also load some up for my 708, It would be good to be able to buy just the one projectile for my Tahr gun as well as my dear gun.
I have a 1:9.5 twist so the 168gr Berger is out of the picture as they require a 1:10 or higher according to Gunworks' website.
I would try the 2217 but I can't find if it is more dense or not, Does anyone know how much they can squeeze in behind a 162?

I'm using another two and a bit grains of 2217 compared to 2225 for a load.
I think you will find that your 1:9.5"twist is tight enough for the 168 berger. But not quick enough for the 180s

I'm using 76 grns of 2217 pushin 165 hornady interlocks in my 308 Norma magnum with Norma brass. Appears to go quite well, not sure of speed but burns good and clean. Its the same shell as the 7rem mag.

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Originally Posted by William

Well I guess I should go with the A-max I guess and 2225,
My goal is to get 3000fps with a hefty projectile. also though the 180gr Berger is the business i think the 162gr Hornady will get the job done and be considerably cheaper, I might also load some up for my 708, It would be good to be able to buy just the one projectile for my Tahr gun as well as my dear gun.
I have a 1:9.5 twist so the 168gr Berger is out of the picture as they require a 1:10 or higher according to Gunworks' website.
I would try the 2217 but I can't find if it is more dense or not, Does anyone know how much they can squeeze in behind a 162?

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Your barrel will be fine with the 168gr berger. I used both the 162 amax and 168 berger in my 1:9 twist trueflite barrel. There was no real difference between the two in terms of accuracy or performance on game. I use to use 71.8gr 2217 with the 168gr berger for 3075 fps from a 26" barrel

Aha, I see what you mean, I was looking at rate of twist or higher and thinking about it back to front. yes I can stabilise the 168 but not fast enough for the 180. Either way I'll just go with the 162 A-max.

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Originally Posted by William

Aha, I see what you mean, I was looking at rate of twist or higher and thinking about it back to front. yes I can stabilise the 168 but not fast enough for the 180. Either way I'll just go with the 162 A-max.

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162 gn SST or AMAX has worked well out of my T3 7 RM have used both 2217 and 2225. have gone back to 2217 for better accuracy

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Originally Posted by matai

162 gn SST or AMAX has worked well out of my T3 7 RM have used both 2217 and 2225. have gone back to 2217 for better accuracy

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about 72 geegee's?

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Originally Posted by Gibo

about 72 geegee's?

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+1

"60% of the time, it works everytime"

Its hard not to want to fill the case though, so much room left ;)

I have ordered a couple of boxes of a-max and a bottle of 2225, if I find I'm not getting the velocities I want I'll go ahead and get some 2217 for my next loads.