what powder for these two calibers?


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32_d3gr33s
December 4, 2013, 01:12 AM
My dad used to reload when i was real little, but never got into it too much and sold what he had years ago. When i started reloading he suggested i load for his and my moms rifles. I dont really have a problem doing that, but i would rather he load his own. He has a 270, and my mom has a 7mm rem mag. They shoot maybe 15-20 rounds a year (mainly sighting in for deer hunting) and that is about it. They've kept most of the brass from the last 10 years or so, so i was thinking about buying them the lee classic loader for both calibers for christmas, along with some bullets, primers and powder. Im just curious if there is a decent powder in both calibers, so i could just get them a 4# jug and call it a day. Im not familiar with either calibers so im not really sure of what to get. Thanks!

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Dudedog
December 4, 2013, 02:17 AM
I like H4831 for my 7mm Rem Mag 140 and 150 grain bullets.. I don't have a 270 but it is listed on Hodgdons site as usuable in 270, 4350 would probably work for both as well.
H4831 slower side of 270 powders
H4350 faster side of 7mm powders

PS: I have not used it but I hear H4831SC (short cut) meters better. The IMR 4831 and 4350 would also work, but note the data is different between the Hodgdon and IMR powders.

45lcshooter
December 4, 2013, 04:19 AM
Best thing to do is get a manual first, that will list several powders for each caliber and some may use the same powder and some don't.

http://data.hodgdon.com/cartridge_load.asp

Eb1
December 4, 2013, 04:22 AM
If they only shoot 15-20 rounds a year. By them two boxes of their favorite ammo, and call it a day. I know that doesn't answer you question, but the answer to that question is in a reloading manual or on a website from Hodgdon, Alliant, IMR, VV, or Winchester. Then look at the bullets they want to use, and they will have load data also.

johnb1226
December 4, 2013, 09:11 AM
If your looking for a powder for both .270 and 7MM Mag. IMR 4320 or IMR 4350 will take care of both calibers very well. Google will find you all kinds of safe alternatives made available by many of the manufactures of powders on the web.

32_d3gr33s
December 4, 2013, 09:58 AM
Thanks for the helpful responses. As for getting a manual or looking on google, that works just fine, but doesn't give me the answer I was looking for. There is 8 or 10 of the same powders listed for both calibers, but I've never used any of them. That's why input from people who have comes in handy.

Don McDowell
December 4, 2013, 10:05 AM
4831 is probably the best powder for both those cartridges.
Don't let the 15-20 rounds a year deal stop you from reloading. That's the way I grew up. We loaded a box of shells for each rifle prior to hunting season, used the left overs from the previous year to sight in, and then went out and hunted. Reloading saved us lots of money then, and still will today.
1 pound of 4831 will give you about 100 rounds 50 for each rifle, and a box of 100 bullets for each and a couple hundred primers and they're good to go for several years, and no worries about ammo shortages on the dealers shelves.

KansasSasquatch
December 4, 2013, 10:28 AM
Just looking at Hodgdon's data anything from IMR4895 up to H1000 "should" work in both calibers http://hodgdon.com/burn-rate.html If I were going to load both calibers I think I'd start with either H414 or H4350 as they're both right in the middle between I4895 and H1000. Neither H414 or H4350 list the fastest velocities in either caliber, but both have respectable velocities in all bullets that'd be suitable for deer.

SASS#23149
December 4, 2013, 10:38 AM
my understanding is that the LeeLoader is a neck-size only affair,so be sure to only use the brass they have,or brass from new ammo fired in their guns.

Eb1
December 4, 2013, 05:55 PM
I have loaded a lot with IMR4350 for the .25-06. It isn't the powder with the most velocity, out of my gun, but it gives good accuracy.

To tell you the truth, I find that the type of primer determines the accuracy more than the powder does. I have loaded the same weight bullet, case, and powder charge in 4 lots of 5 rounds. The only difference was the primer. I have a thread about it.
I used Fed. Match LR Primers, CCI 200, CCI 250 and Win LR Primers. It was obvious that the primers made a huge change in the accuracy department being all thing equal accept that component.

So anybody can say this powder is the best or that powder is, but it is the combination of the components in "that" gun that gives them the results. IMR4350 in my .25-06 shoot like crap with Federal Match primers, but my .25-06 shoots like a laser beam with IMR4350 and Winchester LR primers.

So books and Google do you as much good as THR, me, or anybody else that wants to give you a brand of powder to shoot. And you can pretty much take that to the bank.

Seriously if they only shoot 15 rounds a year. Find a box that shoots good, and buy a few hundred dollars of the same lot number for that brand. They would be better off, and they'd have confidence in their guns because they are shooting from the same lot # from year to year.

Don McDowell
December 4, 2013, 06:27 PM
4831 has been the favored powder in both the 270 and 7 mag , by most of us that have shot the cartridges for the last 40 someodd + years.

oneounceload
December 4, 2013, 08:44 PM
I have used and liked both IMR 4350, and 4831 in my 7 mag. I don't own a 270 but the 270/30-06/7mag family is all pretty close when it comes to reloading so one of those powders should work fine

4895
December 4, 2013, 08:50 PM
I wouldnt buy more than a 1 lb. jug of powder. They might not want to store it anyways if your father suggested you reload for them. IMR-4831 is an excellent choice and will work fine with a Lee loader. That 7mm mag can be downloaded to .280 Remington specs if desired. Might want to get a hammer type bullet puller along with a digital scale and calipers. $100 plus components should get you going. Good luck.

ArchAngelCD
December 4, 2013, 10:45 PM
It may not be politically correct these days to tell the truth but I can't help myself.

They raised you and you are telling us you can't take ONE HOUR out of an entire year to load a box of ammo for each of you're parents?
Shame on you! :rolleyes:

2ndtimer
December 5, 2013, 12:08 AM
It may not be politically correct these days to tell the truth but I can't help myself.

They raised you and you are telling us you can't take ONE HOUR out of an entire year to load a box of ammo for each of you're parents?
Shame on you! :rolleyes:
I am with ArchAngel, ask them which bullets they want and grab some 4350, 4831, Reloder 17, 19 or 22 and have at it. If it were me, I would borrow their rifles, work up a good load and load them up a nice box of 50 rounds of one that works and that their rifle is sighted in for. It is the least you could.

32_d3gr33s
December 5, 2013, 12:17 AM
It may not be politically correct these days to tell the truth but I can't help myself.

They raised you and you are telling us you can't take ONE HOUR out of an entire year to load a box of ammo for each of you're parents?
Shame on you! :rolleyes:
bwahahaha... i suppose... general consensus around here is to not reload for anyone though! I told my dad he's more than welcome to come use my press any time he wants. I shoot all of my rifles on their property which is a good 20 minute drive, so it just makes more sense to load at their house where they already shoot. Im not sure if its selfish, but i really just want to buy them the lee classic loaders because i want to play with them ;)

i did show my mom a video of how they work, and she said she would like to have one, especially because she's sitting on 100+ rounds of brass from her gun. On top of that, it all depends on where they hunt, on which ammo they use. Sometimes they hunt where deer are 350+ yards out, other times its within 75 or so. This way they could load of a few different bullet styles/weights/charges depending on their shooting type... who knows, it may just be the slight kick that my dad needs to get back into loading for his other guns. (30-30, 9mm, 380, and 38 spl. along with a few 12 gauges)

Thanks again for the help. Now just to find some powder in stock locally...

Dudedog
December 5, 2013, 12:52 AM
3rd Generation Shooting Supply has H4831 and large rifle primers in stock. They appear to be out of large rifle magnum primers however.

1 lb H4831 $23, 104 left
Win large rifle primers $35/1000 1577 left.

Don't forget about the hazmat if you can't find any locally and have to order some.

James2
December 5, 2013, 01:04 AM
Another vote for 4831.

GooseGestapo
December 5, 2013, 05:11 AM
I personally use Reloader22. I use it for not only .270win and 7mmRemMag, but have also used it in:
.260Rem (best 140gr bullet powder in my gun)
.243win
..300RUM; though I prefer IMR7828, RL25, and Retumbo; RL22 "works", just 100fps slower
..257Roberts
.257wby (prefer RL25, though here, too)
.30/06; best powder in several rifles with 180gr bullets

It is quite close to H4831, IMR4831, Acc3100, RL19, and others.

My second favorite powder for the .270win, which is also excellent in 7mmMag is MagPro. It gives very highest velocities in .270win with 130gr (64.0gr) and 150gr bullets (60.5gr).
It really depends on what you can find given the current state of affairs. Any of the above mentioned powders, except the "4350's" or similar should be sparked by Magnum Primers. Even the 7mmMag with the "4350's" does well with "standard" primers.

Be sure to use appropriate data for specific powders/component combinations. Use of a Magnum primer instead of a standard requires reduction of 5-10% power charge and work up to maximum for YOUR rifle.
Or, use specific data at 5% under max and go sight in and hunt.... How many people who shoot factory ammo chronograph factory ammo and REALLY know what the ammo is doing.....
I didn't have a chrono for the first 25yrs I reloaded and got along well without one. Didn't blow up any guns, either... But, they are nice to have, and its nice to know!!!

Eb1
December 5, 2013, 06:14 AM
If going IMR 4350, I would choose Winchester LR primers. Due to my own testing, but go by what the books say unless you are challenged like me, and can't follow directions very well.

R-WEST
December 5, 2013, 11:09 PM
i did show my mom a video of how they work, and she said she would like to have one, especially because she's sitting on 100+ rounds of brass from her gun
I love it!! :)
To your original question, get one of the 4350's, 4831's, R19 or R22, and you'll be good to go!!

Shagg
December 6, 2013, 04:54 PM
The above powders will work well. I will add another that I've had very good success with in my 270 and it is listed for the 7mm Rem. Mag. also. That is IMR 7828. I works well with 130 & 140gr bullets.

gamestalker
December 6, 2013, 06:33 PM
I've been loading for both of those cartridges for a long time, and have found RL22 to function very well for both of them. Most any of the good powders for one will do well in the other, as least that has been my experience.

I've run IMR-4831 for both with pretty fair results. H-4831 has also done well. The thing about those two powders that I've learned to live with, is velocity suffers some for the big belted cartridge. This last week I took my son and daughter in law on a couse deer hunt and couldn't locate any RL22, so I went with H-4831 for the .243 win and 7mm RM. I did the same thing with the .270 win and 7mm RM a couple weeks earlier for my other son and my daughter in law, so it works. Anyway, velocity was no where near the potential for the 7 mag, but accuracy didn't suffer one bit.

Now the RL22 load is slightly reversed regarding velocity. The .270 win was running high 2900's fps, while the 7 mag was achieving full tilt velocities. But both were producing maximum potential accuracy. So unless you need all the velocity you can squeeze from it for something very large like elk or bear, a deer won't know the difference. We have had through and through kill shots with powder combinations like this, so it can be done with very little issue as long as the shooter does there job, regarding shot placement.

Some powders that will do well for both of those would be IMR-4350, RL22, IMR-4831, H-4831, RL19, and I'm sure there are a few others you'll find in your books.

GS

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