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SmokinNJokin wrote:In my analysis, I have landed to the summary that crimp is critical for direct ammo - exactly as Len described. My crimps with lead appear identical to his photo.

Many thanks! Very good details. I have accomplished a lot of plunk check but only to ascertain any time a reloaded spherical doesn't suit my case gauge no matter whether it even now fits in my barrel. The plunk Within this case looks like it is utilized to uncover what we phone "touching" seating depth.

Need to be some Genuinely great science going on within your lab. A lot of vicarious capturing anecdotes and leisure pharmaceuticals floating all around? Extremely immediate also to the point you happen to be- NOT! Go have a hike, Brian- Males are speaking below.

Velocity is practically irrelevant until finally you get over 1500fps (preferably 2k). Shot placement + sufficient penetration to succeed in vital organs + max expansion is everything issues.

You said earlier mentioned that Amongst The explanations a customer would buy a reduce cost entry amount AR-fifteen is mainly because they Really don't Shoot as Precise as medium to top end AR's ?

This isn't the place to debate the comparisons on the fatter cartridges; let’s just acquire it without any consideration which the 9mm Luger operates, mainly because it does.

As a protracted-time professor of biomedical science, I'm able to let you know that although Marshall and Sanow's perform was surely properly-intentioned, it fails on almost just about every depend to pass muster as any sort of "science". NO highly regarded journal would publish their function.

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I am definitely curious why the creator was so centered on velocity and penetration and absolutely overlooked energy. That is a great deal more of a factor in defensive ammo assortment than penetration.

These powder steps are alike so they generate the exact same number of case belling/aptitude for that Resource head when applied.

I had a difficulty which has a 9mm case failure a few months again, and assumed I by some means reloaded a double charge of powder...….now, I think it is sort of probable The problem was serious bullet established again, a result of a resized case that did not have sufficient case neck rigidity when using a .355" JHP bullet.

I am sorry you had to undergo that, I basically had to manage Practically the exact same problem a couple of weeks back minus the storm.

As a result of tiny case capability from the 9mm Luger, I sort my brass into lots, divided by headstamp. In this manner I get as near as you possibly can to some uniform case potential for every load I produce. As often, you ought to begin at the bottom shown load for each individual bullet, and get the job done your way up slowly and gradually.