I've used RL19 in the 7mm for years now because I have found it to usually be consistently accurate. I find the FPS is slower than I like though

With my new 7mm I just got I am finding with a 140gr bullet I am still in that 3000FPS all the way up to 67grs?

It is A Sako contour Ted Gaillard 1-9 twist 24 1/4" barrel.

What are pet loads & speeds & out of the following powders I have in my cabinet which would be best to try?

I was hoping I'd be in the 3100-3200 FPS range with decent accuracy. RL19 is looking like it won't cut it though.

Here is what I have for powder

RL25, RL22, RL19, H4831SC, IMR7828SC, IMR4831, IMR4350,

CCI 250's or 215F are what I have for primers. So far I have not found any real noticeable FPS difference between the two?

I'm sure one of those powders would work, but being I am running very close to hunting season & have limited range time I need a good starting point. Fine tuning will have to happen next year I guess.

Thanks.

With 66 grains of 4831sc I get 3087 fps at 10 feet from the muzzle with the Barnes 140 grain TSX.

+1 for 4831 with a 140 grn. bullet!

quote:

Originally posted by Wookie316:
I've used RL19 in the 7mm for years now because I have found it to usually be consistently accurate. I find the FPS is slower than I like though

With my new 7mm I just got I am finding with a 140gr bullet I am still in that 3000FPS all the way up to 67grs?

It is A Sako contour Ted Gaillard 1-9 twist 24 1/4" barrel.

What are pet loads & speeds & out of the following powders I have in my cabinet which would be best to try?

I was hoping I'd be in the 3100-3200 FPS range with decent accuracy. RL19 is looking like it won't cut it though.

Here is what I have for powder

RL25, RL22, RL19, H4831SC, IMR7828SC, IMR4831, IMR4350,

CCI 250's or 215F are what I have for primers. So far I have not found any real noticeable FPS difference between the two?

I'm sure one of those powders would work, but being I am running very close to hunting season & have limited range time I need a good starting point. Fine tuning will have to happen next year I guess.

Thanks.

Why do you feel the need for 3100- 3200 fps?

quote:

Why do you feel the need for 3100- 3200 fps?

May as well be shooting a 280 then if 2900FPS is where it's at. Why not shoot a 7mm Rem Mag to it's potential?

I've had many 7mm Rem Mags over the years. It is a very nice caliber. Like I said in my original post RL19 has been my go to powder for years. That puts me in the 3000 FPS range give or take a bit. If I had to use it, Id be fine. I just wanted to stretch the legs a bit on this girl.

Everyone hypes how a 7mm Rem Mag can push the 3300FPS mark, but I have came no where near that before. May be my Chrony is out 200FPS, but I don't really think so.

deer don't know 100 fps. the 7rem is high enouigh pressure .. 3K will kill any animal you hit it with. That being said, I shoot and or load 708, 7x57, 7x64, and 7remmag. anything past 2700 has the same results on critters... hit em, they die, miss em, its on the shooter.

rl22 is the answer to your question

7mm Rem Mag

175 grain Nosler Partitions

WW cases

CCI-250 primers

66 grains - IMR 7828

Muzzle velocity 15' from the muzzle 3060 fps

I have used this load in three different 7mm Mag and all three grouped well under 1"@ 100 yards.

Best of Luck

Steve

Look at the barnes manual. I have tried several loads. 66gr reloader 22 140 gr TTSX rem pr 3043fps (65gr@3003 was more accurate.)
Barnes says lighter bullets {120gr TTSX) are equal to heavier in all copper design. With 77gr of magpro - 3445fps
78gr of magpro - 3514fps (only 1 shot - this is higher than their manual says so I think I better back off!!No problem with openning bolt but i think the primer showed signs of pressure (I need my long time reloading neighbor to give an opinion!!!)

With RL22 in a 26" Hart 1:9" barrel I'm seeing 3250-3270fps at 15ft
I hesitate to say just how much RL22 I'm actually using but I'll suffice it to say it's north of 68grains (Don't ask, I won't tell)

Your particular lot of RL22 might behave differently

I will not buy less than 6lbs of RL22 of a given lot because it IS variable and if I works I don't want to have to search for more.

If it doesn't work for what I bought it for I can usually find something it does work well in..

I have THREE different lots of RL22 on hand, one of them gets me in the >3250 zone with my 7mmMag

Another lot works well with 165's in my 30-06 >3100
(it's just a gnat's whisker faster than other lots I've tried)

and a third lot that's just kinda "ho-hum" in either rifle.
(but really shines in my brother's 270win with 14gr Partitions) Which is why that lot of powder will be in HIS propellant magazine whenever I get out to Wyoming next...


AD

quote:

Originally posted by jeffeosso:
deer don't know 100 fps. the 7rem is high enouigh pressure .. 3K will kill any animal you hit it with. That being said, I shoot and or load 708, 7x57, 7x64, and 7remmag. anything past 2700 has the same results on critters... hit em, they die, miss em, its on the shooter.

That's a good point, about the 2700fps being the upper limit on velocity for killing game animals.

For my 7mm Mag, and the 7mm Mag of a friend I load for, H-4831SC delivers excellent accuracy with 150 and 160 grain Partitions. 63.5 grains to be soecific, and I use standard Federal 210's for primers, cause at the time I started loading for the 7mm Mag, they were the only prmers I had. They work so well I hate trying to change over to 215's now. Have had no cold weather problems with them either.

Well well well. I was blown away today

I switched from RL19 to RL22 & my eyes were opened

First of the range conditions SUCKED! The wind was terrible, but I have today & next Friday to finalize everything, so it was now or never.

I loaded 15 shells starting at a 5 count 68gr RL22, the 69gr & lastly 70gr.

The barrel was freshly cleaned, so I had one RL19 load left from last trip which I used. 3093 FPS I will mention also

I started with the 68gr RL22 load. First shot 3385 FPS # 2 shot was 3414 FPS Those are the 2 shots to the right. After 3 fouler's it seemed to settle a bit. The 3rd shot was the lower one by itself & was 3349 FPS, then the last 2 in the cluster were each 3347 FPS. I can live with that.

No visible pressure signs with 68gr RL22. I stopped there. That is lots fast enough. I brought the other shells home & will pull the bullets. I may drop down a gr & see if the accuracy stays there.

I am now a believer that a 24" 1-9 twist 7mm Rem Mag will push a 140gr over 3300 FPS.



I think my Dad will be happy It puts my 26" 264 Win Mag to shame so far. 3100 FPS is where it is at with a 140gr in that rig so far.

While I've seen >3400 with 140's from my 7mmMag, I've never gotten there with Barnes bullets,
But I've gotten Nosler both Partitions and accubonds skipping along at those speeds.

OTOH seen a repeated chronograph reading of >3600fps
with 120's realy ticked off my brother the 257Wby owner, as he can't do it with any accuracy with 100gr bullets.

No deer don't know the difference but out on the sage
velocity is pretty important so that you have minumum reliable expansion speed out in the 450-500yard zone where the antelope play...

And before someone says "stalk closer" I wanna see you on knees and elbows in the prickly pears.


AD

7mmRM and the 140 grainer,magic powder=Rel 22

quote:

May as well be shooting a 280 then if 2900FPS is where it's at. Why not shoot a 7mm Rem Mag to it's potential?

It was just a question I can understand your feelings on the matter. I only shoot 150-160 grain bullets so I wouldn't be any help to you, I hope you find a load soon, you’re running out of time.

Thats me as well. I shoot 140's from my 7-08 and .280 I got a 7 Rem Mag to shoot 160's fast.

You could try imr-4350 I used it and at 63.5grs did the trick in 2 7mm mags with the 140 gr core-loc.Good Luck