Winchester WLR Primer vs Magnum

[azar]

I know that a lot of people claim that the Winchester primer is hotter than others and can be substituted for a magnum primer. I also noticed that the older Hornady 7mm Remington Magnum loads used the standard WLR primer (at least the version in the Loadbook USA I saw appeared to use it), but the newer Hornady manual uses the Magnum WLRM primer.

My question is, for 7mm Remington Magnum would it be okay to use the standard Winchester WLR primers I already have or should I go and grab a box of magnum primers? How much of a difference will they make?

I will likely be using Reloader 22, Reloader 19, Ramshot Magnum, or IMR 4350 (probably in that order).

And I know it may all be personal (or rifle preference), but what brand of magnum primer is most recommended (at least for 7mm Remington Magnum)?

 

[454PB]

All I can tell you is that I load for 7mm Rem. mag, 300 Win. mag, and .338 Win. mag, and the WLR primers work just fine for all. I also use CCI 250 primers, and have not seen (or measured over my chronographs) any difference.

 

[Grumulkin]

My question is, for 7mm Remington Magnum would it be okay to use the standard Winchester WLR primers I already have or should I go and grab a box of magnum primers? How much of a difference will they make?

I load for a 7mm Remington Magnum with RL-22 and Federal 210M (large rifle match primers). You don't need magnum primers in this cartridge.

 

[ojibweindian]

I use WLR for my 7mm Rem. Mag. No problems at all.

 

[azar]

Thanks guys! Good to know I don't have to go spend another $30 and can dip in to my standard WLR's.