7mm

pigman1972 · January 21, 2009, 11:41 PM

new to reloading the 7mm mag do you have to use magnum rifle primers or can you use just large rifle primers thanks

hardhit · January 22, 2009, 12:03 AM

Welcome pigman1972
I am guessing it's the 7 mm Remington magnum your talking about is this correct?
If so because of the powder column I would most defiantly use a magnum primer to spark it off like Fed215 or rem 9-1/2 M primer WLRM primer.

ligonierbill · January 22, 2009, 08:30 PM

It depends on the powder, but the 7mm Rem mag likes slow powders, like Reloader 22 or 25. Magnum primers are needed. The manual or web page normally specifies the primer used, and I do hope you are using published data. Don't guess.

DiscoRacing · January 22, 2009, 08:32 PM

you can use reg primers.... i use cci 250 mag primers.... which is suggested with large cases and slower powders.... since i use imr 4064 and imr 4831

oneounceload · January 22, 2009, 08:56 PM

Quote:

you can use reg primers.... i use cci 250 mag primers.... which is suggested with large cases and slower powders.... since i use imr 4064 and imr 4831

HUH?? First you say it's OK, then you say you use mag primers

OP - use mag primers with slow powders....

RTFM when you have ANY doubt

DiscoRacing · January 22, 2009, 08:59 PM

you CAN use either one.... its not like if you dont use a mag it wont fire... point was with the slower powder and larger capacity cases is what the mag primer is recommended for...or so my sierra manual and speer says

BradF · January 22, 2009, 09:05 PM

I use CCI 250's in mine with IMR4831. Works great. I have never tried standard LR primers, my manuals all say Magnums so that's what I have used. With the right powder they would work.

pigman1972 · January 22, 2009, 09:13 PM

i have down loaded hodgdon powder loads i am using imr 7828 with a 140 g blistic tip nad it has primers listed it has a winchester lr thats all that is listed thanks

hardhit · January 23, 2009, 05:17 AM

You should get some more info! Buy a reloading manual if you don’t have one all ready, we post info but your doing the reloading and I take it you will be the one shooting the rifle, I just went to my reloading manuals and all three books list magnum primers for the 7mm Remington magnum.

ForneyRider · January 26, 2009, 03:25 PM

The rule of thumb I have seen consistently is to use magnum primers for extreme cold weather and/or long cases(Rem 7mm Mag) with lots of slow powder.

I use magnum primers for 270 Win and Rem. 7mm Magnum. Typically, I use R22 powder for these cartridges. I use Rem, Fed and CCI large rifle magnum.

Shoney · January 26, 2009, 05:02 PM

DO NOT READ THOSE RELOADING MANUALS!!!

We need colorful names like "Three Finger One Eye Pigman", so we can use you as a good bad example.

James R. Burke · February 20, 2009, 05:00 PM

I reload for a friends 7mm rem mag I to use a CCI 250 Mag primer and I believe IMR 4831. But like everyone is saying get a manual for the bullet your using, and do what it says for that load. It's the only way to go. I have a ton of manuals drives the wife nuts. Things change so you need to keep upgrading.

TheNatureBoy · February 22, 2009, 09:03 AM

I just picked up a Remington Sendero 7mm mag and asked my reloading partner the same question. Pretty much the same as above. Magnum primer first and large rifle primer if you don't have anything else.

January 21, 2009, 11:41 PM	#1
pigman1972 Junior Member Join Date: January 21, 2009 Posts: 2	7mm new to reloading the 7mm mag do you have to use magnum rifle primers or can you use just large rifle primers thanks

January 22, 2009, 09:13 PM	#8
pigman1972 Junior Member Join Date: January 21, 2009 Posts: 2	i have down loaded hodgdon powder loads i am using imr 7828 with a 140 g blistic tip nad it has primers listed it has a winchester lr thats all that is listed thanks Last edited by pigman1972; January 22, 2009 at 09:16 PM. Reason: did not put all the in fo on the post

January 26, 2009, 03:25 PM	#10
ForneyRider Senior Member Join Date: December 4, 2007 Location: Forney, TX Posts: 725	The rule of thumb I have seen consistently is to use magnum primers for extreme cold weather and/or long cases(Rem 7mm Mag) with lots of slow powder. I use magnum primers for 270 Win and Rem. 7mm Magnum. Typically, I use R22 powder for these cartridges. I use Rem, Fed and CCI large rifle magnum. __________________ When all is said and done, there is a lot more said than done. Last edited by ForneyRider; January 26, 2009 at 03:29 PM. Reason: slow

January 26, 2009, 05:02 PM	#11
Shoney Senior Member Join Date: February 21, 2002 Location: Transplanted from Montana Posts: 2,311	DO NOT READ THOSE RELOADING MANUALS!!! We need colorful names like "Three Finger One Eye Pigman", so we can use you as a good bad example. __________________ I pledge allegiance to the Flag - - -, and to the Republic for which it stands….Our Forefathers were brilliant for giving us a Republic, not a democracy! Do you know the difference??? and WHY?http://www.wallbuilders.com/LIBissue...les.asp?id=111

February 20, 2009, 05:00 PM	#12
James R. Burke Senior Member Join Date: January 3, 2009 Location: U.P. of Mich/Quinnesec Posts: 1,897	Primer I reload for a friends 7mm rem mag I to use a CCI 250 Mag primer and I believe IMR 4831. But like everyone is saying get a manual for the bullet your using, and do what it says for that load. It's the only way to go. I have a ton of manuals drives the wife nuts. Things change so you need to keep upgrading.

January 22, 2009, 12:03 AM	#2
hardhit Senior Member Join Date: August 18, 2008 Posts: 343	Welcome pigman1972 I am guessing it's the 7 mm Remington magnum your talking about is this correct? If so because of the powder column I would most defiantly use a magnum primer to spark it off like Fed215 or rem 9-1/2 M primer WLRM primer.

January 22, 2009, 08:30 PM	#3
ligonierbill Senior Member Join Date: May 20, 2007 Posts: 2,448	It depends on the powder, but the 7mm Rem mag likes slow powders, like Reloader 22 or 25. Magnum primers are needed. The manual or web page normally specifies the primer used, and I do hope you are using published data. Don't guess.

January 22, 2009, 08:32 PM	#4
DiscoRacing Senior Member Join Date: December 19, 2008 Location: milton, wv Posts: 3,640	you can use reg primers.... i use cci 250 mag primers.... which is suggested with large cases and slower powders.... since i use imr 4064 and imr 4831

January 22, 2009, 08:59 PM	#6
DiscoRacing Senior Member Join Date: December 19, 2008 Location: milton, wv Posts: 3,640	you CAN use either one.... its not like if you dont use a mag it wont fire... point was with the slower powder and larger capacity cases is what the mag primer is recommended for...or so my sierra manual and speer says

January 22, 2009, 09:05 PM	#7
BradF Senior Member Join Date: December 7, 2008 Location: NE AL Posts: 172	I use CCI 250's in mine with IMR4831. Works great. I have never tried standard LR primers, my manuals all say Magnums so that's what I have used. With the right powder they would work.

January 23, 2009, 05:17 AM	#9
hardhit Senior Member Join Date: August 18, 2008 Posts: 343	You should get some more info! Buy a reloading manual if you don’t have one all ready, we post info but your doing the reloading and I take it you will be the one shooting the rifle, I just went to my reloading manuals and all three books list magnum primers for the 7mm Remington magnum.

February 22, 2009, 09:03 AM	#13
TheNatureBoy Senior Member Join Date: September 6, 2007 Posts: 1,204	I just picked up a Remington Sendero 7mm mag and asked my reloading partner the same question. Pretty much the same as above. Magnum primer first and large rifle primer if you don't have anything else.

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