I'm want to start reloading my .270 win. and i need to order in the primers. What are the best to use with Winchester brass and Reloader 22 powder? Also gonna do up my 7mm rem mag what are the primers I will use with them as well (sizes)?
Gonna use Reloader22 powder for both of them gonna try to kill 2 birds with 1 stone on the powder.

You need large rifle primers, the differences between brands are almost immaterial. Moreover, unless you're using an ultra-slow powder and/or shooting in extremely cold conditions, standard primers should be used.

I would recommend Federal 210 or 210m primers. I've had good results with them and either one should work with both combinations you mentioned. They are both standard large rifle primers, with the 210m being a match primer (better of the two).

Ditto what Paul and vip said about the primers you need, but I don't think you need to order the powder or primers. You can go to most gun stores, or even Wal-Mart and buy them. When you mail-order powder or primers, there is a hazardous materials fee. Last one I saw quoted was $20. You can buy a pound of powder or 1000 primers for less than $20 around here.

H. C.

For the 270WIN I rec Reloader 22 and
FED 210 Match GM primers for the 7mm Mag I use Reloader 19 or IMR 4350 and Fed Match 215GM.

Both casings use the large rifle primer? Wouldnt the 7mm rem mag use a different primer?
And BTW I havent gotten my manual yet because it is in transit in the mail I was just trying to get everything in place for when my "Kit" comes in.

TruckerB

For standard American calibers (boxer style easily replaceable primers) there are only 4 primer types, Large Rifle, Large Pistol, Small Rifle, Small Pistol. The Large primer sizes are the same diameter, but the rifle is .009" taller than the pistol, so they don't interchange. The small primer sizes actually have the same outside dimensions, but the rifle primer uses a thicker cup wall to contain the much higher pressures rifle cartridges use. This thicker wall can cause misfires if used in pistol cartridges as it requires a much harder firing pin hit to go off. Your load manuals will tell you which type of primer is standard for the cartridge you are reloading.

There are some exceptions as some cartridge cases have been made for both small and large primers, but the diameter difference is easily seen by eye and you just need to use the correct diameter to fit the case, and correct type (rifle or pistol) that will handle the maximum pressure of the cartridge. This is why 454 Casull at 62,000 psi max uses rifle type primers instead of pistol primers (magnum pistol calibers are typically 35,000 psi max, the other pistol calibers are even lower).

Wow thats one of the best explanations and it made perfect sense to me, thats not an easy thing to do either!!!!
I just got word today that my new gun might be in on thursday instead of 3 weeks from now. I guess it was in stock in Montreal from the Browning dealer there. Thats my new 7mm Rem mag that i dont want to peal the barrel like a banana. I'm newer than new in this hobby, but have seen a few rounds pressed together and thought I mike like to try it myself. So thanks for the patients in all your answers and thanks for the answers you guys will come up with for me.