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Velocity?

Started by Neill_Prater, September 12, 2020, 10:31:26 AM

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Neill_Prater

I have a question. More than once, I have noticed that, according to things I have read,  shooters have experienced a change in patterns when their favorite ammo is loaded to a higher velocity by the manufacturer. I get the drift that change is most often negative.

Physics is not my strong suit, but as I understand it, the faster a sphere is launched, the more quickly it slows, meaning that at a distance, the difference in retained velocity is negligable. Soooo, why does anyone crank the muzzle velocity of a turkey load up to 1200 or even 1300 fps?

Less recoil, reduced muzzle blast, and, in many cases, denser patterns of slower loads would, to me, seem to outweigh any possible benefits of increased speed.

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tal

 Your reasoning is sound. The old saying of "if a little will do a little good, a lot is better" doesn't hold true with shotshell charge weight or velocity. The why is simply a matter of sales. Hunters are afflicted with magnumitis. Pattern tests will reveal the truth.

greencop01

I've noticed in my gun, it shoots denser patterns, especially at distance (40 yds) with 3" Win Longbeards than with 3 1/2" Win Longbeards. With 3 1/2" I get thinner patterns. Just an observation. I'm glad though, easier on the shoulder. I wonder if others experianced this also?
We wait all year,why not enjoy the longbeard coming in hunting for a hen, let 'em' in close !!!

crow

in a couple of blackpowder shotshell guns I reload for, by dropping the powder charge a little and loading a little more shot from the standard load they both shoot tighter patterns.

it's not just a better pattern which you would expect from more pellets in the load, it is a noticeably denser center core pattern

Ihuntoldschool

Why?  Marketing, High Velocity sells.  Remember ammo manufacturers make products to make money.

Sir-diealot

When I was loading shotshells for sporting clays before my accident I tried adding a bit more powder to the load and had awful results.

Same goes for when I was reloading 55gr. Nosler Boat Tailed Ballistic tips for woodchucks, the lighter and middle load shot great with middle load being the best but when I went to the highest load using the same powder (IMR 4064) the shots started to open up quite a bit.
Strength does not come from winning. Your struggles develop your strengths. When you go through hardships and decide not to surrender, that is strength. Arnold Schwarzenegger

John Koenig:
"It's better to live as your own man, than as a fool in someone else's dream."

Tom007

Quote from: Sir-diealot on September 13, 2020, 12:37:42 PM
When I was loading shotshells for sporting clays before my accident I tried adding a bit more powder to the load and had awful results.

Same goes for when I was reloading 55gr. Nosler Boat Tailed Ballistic tips for woodchucks, the lighter and middle load shot great with middle load being the best but when I went to the highest load using the same powder (IMR 4064) the shots started to open up quite a bit.



Seems to be a theme here. The hotter, faster loads don't seem to pattern as well. I found this with the Hotter loads in the Winchester long beard shells, the 1050 FPS patterned better than the 1200 FPS loads. At least this is what I found with my set up. Be safe....

wvmntnhick

Quote from: Sir-diealot on September 13, 2020, 12:37:42 PM
When I was loading shotshells for sporting clays before my accident I tried adding a bit more powder to the load and had awful results.

Same goes for when I was reloading 55gr. Nosler Boat Tailed Ballistic tips for woodchucks, the lighter and middle load shot great with middle load being the best but when I went to the highest load using the same powder (IMR 4064) the shots started to open up quite a bit.
It's also just as likely you didn't find the accuracy node on the higher end of the spectrum. Rifles will missy often have 2 accuracy nodes. Most times I can hit the higher end. But, my 7STW wouldn't. It was showing pressure signs as things were starting to tighten up but before getting to where I'd like. Long story short, it's just a high priced 7 magnum that no one sells ammo for.


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Yoder409

I haven't tried any of the slower loads in any of my guns.  It would only stand to reason that the loads that start out sub-sonic would suffer less disturbance and theoretically post better patterns.  That being said............the REASON that I haven't tried any of the slower loads is that the patterns I'm getting with the faster loads are WAY beyond sufficient. 

A whole different dynamic with rifle loads.  Most all modern rifle loads are super-sonic.  Barrel harmonics are daffy things.  But I have a bunch of rifles that are at their very most accurate right up at the bitter edge of sanity.  Rifles to include .220 Swift, 7-STW, .300 Win and Wby and .375 Wby.   Might they have another accuracy point lower down ??  Maybe.  Probably.  But why ??

PA elitist since 1979

The good Lord ain't made a gobbler I can't kill.  I just gotta be there at the right time.....  on the day he wants to die.

Sir-diealot

Quote from: wvmntnhick on September 15, 2020, 01:48:53 PM
Quote from: Sir-diealot on September 13, 2020, 12:37:42 PM
When I was loading shotshells for sporting clays before my accident I tried adding a bit more powder to the load and had awful results.

Same goes for when I was reloading 55gr. Nosler Boat Tailed Ballistic tips for woodchucks, the lighter and middle load shot great with middle load being the best but when I went to the highest load using the same powder (IMR 4064) the shots started to open up quite a bit.
It's also just as likely you didn't find the accuracy node on the higher end of the spectrum. Rifles will missy often have 2 accuracy nodes. Most times I can hit the higher end. But, my 7STW wouldn't. It was showing pressure signs as things were starting to tighten up but before getting to where I'd like. Long story short, it's just a high priced 7 magnum that no one sells ammo for.


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Could be, I am still pretty new to reloading so what you are talking about is beyond me.
Strength does not come from winning. Your struggles develop your strengths. When you go through hardships and decide not to surrender, that is strength. Arnold Schwarzenegger

John Koenig:
"It's better to live as your own man, than as a fool in someone else's dream."

the Ward

Probably a fine line between having enough velocity with the pellet size and weight for sufficient penetration and pattern density at the range the load is designed for. 1200-1300 fps is probably close to the optimal speed for lead pellet energy and penetration in the 4,5, and 6 sizes as tested by ammo manufacturers to still pattern well and be lethal. Just my guess anyways.