ive been reloading 270wsm for a couple years now and have had all the components needed by the books. Im about to reload some 270s and all the books call for winchester WLR primers. I cant find any to buy online. I have WLRM, fed 215 ,rem 91/2. i was wondering if it will be a big uh oh if i use one of them instead . Thinking about pressures and just general ability to make a safe load with Nosler bullets and H4831 SC
Primer questions
- Thread starter Hankins
- Start date
45/30-06OKIE
Member
any large rifle primers will be fine. However I like using magnum ones myself just because people seem to think they work better when in the cold, but I need to test that one of these days... Not now obviously, its 100+ here in OK...
Hooda Thunkit
Member
Many folks use Magnum Primers for large capacity cartridges, or when using hard to ignite ball powders. A Mag primer will work fine in your application.
As always, start low with powder charge and work up.
As always, start low with powder charge and work up.
Winchester WLR primers are magnum primers, so I have to wonder why only those were used.
I don't know if you can find CCI #34's, but they are magnum rifle primers. And the cup is thicker. The military wants primers that will make the cartridge go bang at minus 40 F, so military primers have been magnum primers.
Around 1999-2000 Winchester went to the brass finish rifle primer. What Winchester did in that product change was make the primers more sensitive by thinning the cup. Loads in my AR15 that had no problem with nickel plated WSR pierced constantly with brass WSR. That dished the tips of my firing pins, which required replacement. When you are shooting a magnum round, be aware of this. Firing pins in AR15's are about $20.00, your bolt gun firing pin will probably cost $200 to replace. Or at least don't be surprised at a crotch grabbing replacement price!
If you want to use magnum primers, look for CCI. CCI cups seem to be thicker than Winchester. Don’t ignore Federal primers, they work just fine.
I don't know if you can find CCI #34's, but they are magnum rifle primers. And the cup is thicker. The military wants primers that will make the cartridge go bang at minus 40 F, so military primers have been magnum primers.
Around 1999-2000 Winchester went to the brass finish rifle primer. What Winchester did in that product change was make the primers more sensitive by thinning the cup. Loads in my AR15 that had no problem with nickel plated WSR pierced constantly with brass WSR. That dished the tips of my firing pins, which required replacement. When you are shooting a magnum round, be aware of this. Firing pins in AR15's are about $20.00, your bolt gun firing pin will probably cost $200 to replace. Or at least don't be surprised at a crotch grabbing replacement price!
If you want to use magnum primers, look for CCI. CCI cups seem to be thicker than Winchester. Don’t ignore Federal primers, they work just fine.
FROGO207
Member
I have been slowly changing all my rifle loads to ones using magnum primers. Things have slowed recently due to the primers being in short supply though. One thing you should do is to do at least a minimal workup when changing any components. I check to see if my accuracy node is different and test in both hot and cold conditions before the complete shift over of loads.
HEAVY METAL 1
Member
- Joined
- Jan 18, 2005
- Messages
- 418
In my experience switching standard large rifle primer brands had the least influence on accuracy on any given load and I load for over two dozen weapons. It also had the least influence on pressure. Switching to using a large rifle magnum primer will make a difference and for safety reasons it is encumbent upon the reloader to work up the load anew for that because the magnum primer is"hotter".
ArchAngelCD
Member.
Slamfire, you are usually spot on but not this time.
WLR primers are not the same as their WLM primers. Their WLP primers are the same for .both standard and magnum loads.
To the OP, as said, you can safely use any of your large rifle primers. If they are magnum primers of course drop your charge back and work back up unless you are not near the published Max charge weight.
Good luck, keep us updated.
