Max Effective Range of Common 300 BLK Projectiles

[r.tenorio671]

...thanks for the post Doc, invaluable info presented!


...now if only those LH 108's would come back into stock so I can get some...

[Walkers Bay]

Thank you sir that is definitely food for thought.
Going to have to have a wee think about my next projectile choice

[Dr.Phil]

- Nosler 110 Varmageddon
.293BC mV = 2,100fps Term Threshold = 1,800fps MAX = 125yds

- Nosler 125 Balistic Tip
.366BC mV = 2,100fps Term Threshold = 1,800fps MAX = 100yds

I believe you have the MAX reversed on these two. The BT should have a longer max range. The Hornady online calculator shows the BT to be traveling 1841fps @ 125 and 1792 fps @ 150.

Thanks for commenting.
I'll check those and adjust.

How reliable/what is the source of the terminal velocity listed in your table?

Not that I don't believe the data, but this is the internet

The ballistic tables were taken from Brian Litz's Applied Ballistics application.
If you don't trust that source than you should Google Brian Litz.

Making this a sticky would be a good idea.
I'll be sure to update the thread when new projectiles come on the scene or if someone generates different data.
(like dellet....)

The toughest piece of the puzzle was finding out the Terminal Threshold of each projectile.
Some projectiles, like the ones from Lehigh were easy to find out, but others had to be interpolated by using numbers from other projectiles in the same family / manufacture.
If anyone can help refine that, it would be much appreciated.

[steven11b]

Comparing the 110gr varmegeddon to the 125gr tnt is interesting. I use both of these bullets for plinking and possibly for hunting opportunities one day should I ever get the chance. Looks as though the 125gr tnt wins out on the effective range by a good amount, I have tested these for expansion out to 100yds and they worked well in a hasty test.

Thanks Dr. Phil for the time and information.

[rebel]

Great info.

[Dr.Phil]

Some of the results were suprising to me as well.
I started this thread because I was curious.

My last shot at a deer was at 330 yards right at dusk.
Took her with a 175 SMK in 308 WIN.
Double lung shot, DRT.
The 175 SMK's jacket expanded and the core separated.
The core did not tumble and exited the other side cleanly.
(Not getting into a hunting with SMK debate here...)

Anyhow, where I hunt, 300 - 500 yard shots are common.
I wanted to find a 300 BLK projectile that would perform at these ranges.
My personal choice is the Barnes 110 or 120 TAC-TX after doing the research.
The Lehigh Defense projectiles would be my choice for LE / MIL work, but for hunting they have too many down sides.
Other than extreeme drop with the subsonic rounds, meat damage with the CC or CQ rounds would be extensive.

[Sig220]

Guess I should have been more specific.

Brian Litz is well known, although most ballistic calculators would give you the same information.

My question should have been, Where was the information on terminal threshold for the projectiles obtained?"

Thanks for your answer, "Some projectiles, like the ones from Lehigh were easy to find out, but others had to be interpolated by using numbers from other projectiles in the same family / manufacture. If anyone can help refine that, it would be much appreciated."

I think that information (terminal threshold for projectiles) once verified would make a great sticky. As handloaders, velocity from one loader/rifle to the next is subject to change, but if we knew what velocity we needed to make the projectile perform we would all know our goal.

[Dr.Phil]

Guess I should have been more specific.

Brian Litz is well known, although most ballistic calculators would give you the same information.

My question should have been, Where was the information on terminal threshold for the projectiles obtained?"

Thanks for your answer, "Some projectiles, like the ones from Lehigh were easy to find out, but others had to be interpolated by using numbers from other projectiles in the same family / manufacture. If anyone can help refine that, it would be much appreciated."

To be specific, the Terminal Threshold was either listed by the manufacture or posted online in forums by the manufacture.
Data that was not listed was interpolated by taking a similar projectile by the same manufacture that had a Terminal Threshold listed and using it.
For instance, the Barnes 110 & 120 TAC-TX will have similar materials & design, therefore it is safe to use the Terminal Threshold of the 110 for the 120.

As I get updated or more accurate data on Terminal Threshold, I'll update the listings.
The thread is intended to be a living document that is updated and refined.

I would create a bibliography to cite sources, but I'd preffer not to waste the time if at all possible.
Not to be a smart ass, but I think that I've been around here long enough to warrant the trust.

[Sig220]

Hey, its appreciated that you compiled the information you presented. IMHO, the terminal threshold info is the most important.

I can't count how many different numbers I have read in the forums(well meaning, too) saying what they heard the velocity was for the even the Barnes 110gn Blacktip needed to expand (for example). I am not calling you out over your information, would just be more comfortable knowing they are correct. If you don't feel the need to, its okay. I can still use some of the information you posted. For that, you have my thanks!

[plant.one]

- Lehigh Defense 194 ME
.638BC mV = 1,050fps Term Threshold = 750fps MAX = 1,000yds

- Lehigh Defense 174 CF
.586BC mV = 1,050fps Term Threshold = 750fps MAX = 1,000yds

i would like to make a request - for readability & longevity reasons. as shown above the data is a bit confusing at a quick glance. i think it would be more useful in the following format

Lehigh Defense 194 ME
BC = .638
mV = 1,050fps
Term Threshold = 750fps
MAX = 1,000yds

Lehigh Defense 174 CF
BC = .586
mV = 1,050fps
Term Threshold = 750fps
MAX = 1,000yds

just my $0.02 USD