Treeman
@treeman
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Joined: May 12, 2022
Last seen: May 9, 2026
Topics: 180 / Replies: 1586
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Re: Sectional density and overall weight

Momentum (speed x weight) plays a big role in penetration. I can remember a picture showing a 300gr (375HH) solid in an oak board. It penetrated 57 in...

2 years ago
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Re: So it finally happened !

Quick Load puts the pressure at 99000  PSI

2 years ago
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Re: So it finally happened !

They very different and yet so the same. 20240922_130608 by David Frank Allen, on Flickr20240922_130558 by David Frank Allen, on Flickr

2 years ago
Topic
Replies: 28
Views: 6563
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Re: Sectional density and overall weight

Generally, it should be the case, but not always. Bullet speed, bullet construction,target medium etc play a role.***********************Ya - not inte...

2 years ago
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Re: Hoe werk geweerkruit?

What is also important is the ratio between case volume and caliber. A big case with a wide neck will require a faster powder, compared to the same ca...

2 years ago
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Re: How not to slug your barrel

Happy result. Ideally you want to start with a pure lead blank that is just a little over max possible bore dimension. It's also a good idea to l...

2 years ago
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Re: Sectional density and overall weight

So if you look at it this way. All metal spheres have the same SD. If you drop a 1kg sphere or a 1g sphere from the same height onto a plank of wood, ...

2 years ago
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Re: FEG R61 9mmK shooting high

just had a thought , I wonder what affect a dry slide, lack of lube would have on slide time and rearwards tug on pistol as it moves.If any that is .

2 years ago
Forum
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Re: FEG R61 9mmK shooting high

Devil in me tells me shooter, even if its two shooters.31 years or older, possibility of worn components?*************************Wear and tear is gra...

2 years ago
Forum
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Re: FEG R61 9mmK shooting high

Devil in me tells me shooter, even if its two shooters.

2 years ago
Forum
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Re: Sectional density and overall weight

I am still trying to find out if a lighter smaller caliber, say a .270 160 gr bullet with a high SD of about 310 at 2600 fps penetrate deeper than a 3...

2 years ago
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Re: Sectional density and overall weight

So when Cody and I are on our bellies crawling through the thick stuff, it would be better to have 100 gr bullets than 158 gr bullets ? When facing bu...

2 years ago
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Re: Sectional density and overall weight

interesting article on the subject.Some notes: Double your weight and you double your energy, but double velocity = quadruple energy. It seems that ve...

2 years ago
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Re: Sectional density and overall weight

I think there are too many other variables to be able to make a confident call on this one.My gut says this is the answer. It can't be single fac...

2 years ago
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