Marlin .38-55

I have a Marlin .38-55 cartridge in my collection that has a small rifle primer. I was wondering why Marlin used the small primer on this round and if all of their rifle ammo was loaded with small primers? Also was there a difference in powder ignition between large and small primers?
Kevin

Yes the small primer and the headstamp (44-40 vs .44 WCF) are a key to ID Marlin rounds. But sorry, no help on the ignition factor.

I believe the small primers (coupled with flat nose bullets) had to do with reducing the chance for inadvertent ignition of cartridges in a tubular magazine.

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