Primer Strike Force
I have an article by Charlie Dell about some primer tests that he conducted to determine if bullet velocity and/or accuracy was affected by the force of the hammer strike. His conclusion is that there was no connection. I'd never thought about it, but it struck a chord; Ricardo ("The High Speed Internal Combustion Engine" found that the size/voltage/strength of the spark had nothing to do with the characteristics of the burn in the cylinder. If it lit, it burned.
Then I found this. In the Gun Digest Treasury, Deluxe 4th edition, "Reloading for Varmint Hunting" by John Lachuck, page 313, he writes: "Accuracy depends to a surprising degree upon good primer action. Superior automobile performance requires a hot spark."
He then goes on about firing pin springs etc., then: "Frank Snow discovered that short-action bolt rifles shot better when heavy firing pin springs were installed. Coincidentally, ballistician Edward M. Yard found that a heavy blow of the firing pin causes increased flash energy from a primer."
I have but can't find a reference to Remington testing for this. Several to many other references have been made to the "fact" that firing pin strike force affects velocity and/or accuracy.
If so, this is an easy and quick fix to increase accuracy. I see the firing pins and springs being offered for sale in the gun magazines, the assumption seem to be that they increase accuracy.
I'm interested in hearing from anyone with experience in this matter.
Thanks;
joe brennan