Quote:
Originally Posted by Dave Suponski
This is extracted from an article I have here by Tom Armbrust
The load is: Winchester 12 gauge 2 3/4" Hull 17.0 grains IMR 700-X
powder with a Greenduster GT Wad #9210-12
Primer Velocity FPS Chamber Pressure
Fed 209A 1251 10,860
CCI-209M 1248 10,460
Win. 209 1246 10,140
Rem. 209 STS 1236 9,740
FIO-616 1234 9,690
CCI-209 1232 9,650
Rem. 209P 1228 8,810
Fed 209 1226 9,070
Win 209 MDL 1224 10,200
Cheddite 209 1217 9,270
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The bad thing is, if you try this same test with a completely different load, in say 16 gauge. Those primers will be in different locations. I've tested enough loads to know that they will act differently in different loads. Sure, you're magnum primers will always be at the top. But the others will move around. If you're not following a specific tested load, the only way you'll know for sure how a primer swap will change the load, is to have it tested.