The force is applied to the die plate off the centerline of the die. This results in two force vectors that are parallel but offset. One pushing down at the die plate linkage point. The other pushing up through the die as a result of the cases resistance to being sized. It's inherently inefficient. In a conventional press the ram pushes up through the center of the case. This is high school physics. It's blatantly obvious if you understand force vectors.
Press Recommendations Please
- Thread starter 70m4h4wk
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The force is applied to the die plate off the centerline of the die. This results in two force vectors that are parallel but offset. One pushing down at the die plate linkage point. The other pushing up through the die as a result of the cases resistance to being sized. It's inherently inefficient. In a conventional press the ram pushes up through the center of the case. This is high school physics. It's blatantly obvious if you understand force vectors.
Ultimate Reloader recently did an interesting review of 14 presses. The peak sizing force to size
a 6.5 Creedmore case in the Summit was ~30 lbs, putting it in 9th place out of 14 presses,
so if you're over 85 years old and weigh less than 100 lbs, the Summit isn't the press for you...
https://youtu.be/TqcYI0G2hqM
a 6.5 Creedmore case in the Summit was ~30 lbs, putting it in 9th place out of 14 presses,
so if you're over 85 years old and weigh less than 100 lbs, the Summit isn't the press for you...
https://youtu.be/TqcYI0G2hqM
From what I’ve seen and understand it’s more of a precision press then a work horse.
That’s what I’m after. The most work it will have to do is light shoulder bumps.
In the same test it also ranks number two in lowest amount of bullet runout.
The only press that was better was some fancy unaffordable German press.
Joe
That’s what I’m after. The most work it will have to do is light shoulder bumps.
In the same test it also ranks number two in lowest amount of bullet runout.
The only press that was better was some fancy unaffordable German press.
Joe
I view testing that involves a sample size of one as anecdotal. They may or may not offer a good representation of the performance of the product. Bullet runout involves a lot of variables including the consistency of the brass. I think the test used 5 rounds. This is a small sample size in itself. My point being, internet reviews are not reliable. They are all but worthless.
In regards to mechanics (physics)it most certainly does. A more efficient design will wear less than those systems that are less efficient. If you research it, you will see the Summit is a rehash of an old press design that went away for good reason.
I guess you better phone up the engineering department at Rcbs and let them know the bad news. They should probably know.
Any engineer worth their salt would not have to be told the obvious.
