Re: Buy WOLF 223 or WOLF SRM primers???
Look here and this is where Wideners explains the difference in Wolf SRMs, 223 and SR primers:
http://wideners.com/itemdetail.cfm?item_id=7277&dir=278|284|737
"Wolf Small Rifle Primer ( Part # QQQSR) - NEW
Wolf small rifle primers are now available in types.
SMALL RIFLE PRIMER (part # QQQSR) - Used as a standard small rifle primer. Perfect for the 30 carbine and 223 standard loads. Many people use this primer in bench and other loads for the 223. This primer is a copper colored primer.
SMALL RIFLE MAGNUM PRIMER (part# QQQSRM) - This is the primer we had before for use in the 5.56 loads and hot 223 loads. A thick cup for the higher pressure. We sold a lot of these primers earlier this year. The new lot is brass colored instead of nickel.
SMALL RIFLE 223 (part # QQQSR223) NEW NEW This is the newest primer available in the Wolf line. It is ever so slightly hotter than the small rifle magnum primer and it comes with a brass colored thick cup. This primer can be used in place of the SRM primer or used when a different powder is used that is hard to ignite.
Wolf primers look great. They are made in Russia and packaged in 100 rd trays in 1000 sleeves and 5000 cases. They are packed anvil up so no "primer flipping" required.
The WOLF Standard Small Rifle Primers have an all COPPER CUP, which is a little more sensitive than the brass cup magnum primers. If you are loading for an AR15 or Military Style semi auto rifle, or are loading high pressure cartridges in any other type of rifle ,we recommend you use the Magnum Small rifle primers. Both primers use the same amount of compound. The only difference is in the cup hardness.
Our testing of these primers indicate that they are very consistant when shooting for groups. Of course there is more to a load than just the primer. Try them out and see for yourself."