Barrel Harmonics Testing

[cohunt]

As far as barrel harmonics go--- if you want to go all out you could get a "structured" barrel from these guys

Structured Barrels

Structured Barrels add +300% surface area and+50% rigidity. Shoot longer, run cooler, and mitigate recoil for rapid, follow-up shots.

tacomhq.com

 

[asd9055]

As far as barrel harmonics go--- if you want to go all out you could get a "structured" barrel from these guys

Structured Barrels

Structured Barrels add +300% surface area and+50% rigidity. Shoot longer, run cooler, and mitigate recoil for rapid, follow-up shots.

tacomhq.com

Sounds amazing. I will have to look at them on my computer when I have more time.
Have you tried one?

 

[cohunt]

Sounds amazing. I will have to look at them on my computer when I have more time.
Have you tried one?

Waaaay too pricey for me--- I heard that military was doing some testing with them but I really havent seen to many actually being used.

 

[asd9055]

Waaaay too pricey for me--- I heard that military was doing some testing with them but I really havent seen to many actually being used.

It sounded pricey. Not in the market anytime soon. Just good to have choices when the time
Comes

 

[cohunt]

It sounded pricey. Not in the market anytime soon. Just good to have choices when the time
Comes

I'm surprised no competition shooters have tried them yet--- or maybe they have and I've not heard about it

 

[cdherman]

From a structural dynamics standpoint, the barrel should be far stiffer than a fluted barrel -- for a given weight. Some of their claims seem magical though.. For instance: Heat distribution is ENTIRELY dependent on surface area. Their claim that the barrel is magically cool is questionable. Flutes create more surface area. Now, what would potentially be amazing would be the ability to push air or heavens coolant down those clock like borings. Sound familiar? It should.

 

[Capt RB]

I'm surprised no competition shooters have tried them yet--- or maybe they have and I've not heard about it

ELR matches seem to have a few

 

[Michael Lares]

You might want to consider a muzzle brake for that. and both ear plugs and muffs.

FYI:
For all who want the finite accuracy, look up " Optimum barrel time vs. Barrel length, ms"
Years ago quite a study and lots of testing done since then. Problem is that you need a program to figure it all out, like Quick Load.
Most people really struggle with QL as it's just a program & like all programs it is " garbage in = garbage out". If you're willing to enter EVERYTHING, including measuring your case h20, calculating starting pressure / bullet jump factor etc etc. It works amazing. QL gives your barrel time in ms which is the key. You can watch your bullet time ( bt ) go up & down per powder changes and everything else. Powder % burned in barrel is another awesome tool to find best powder for load etc.
Then the powder & bullet seating depth ladder tests as always. Works for me but not easy.

 

[fseaman]

Problem is that you need a program to figure it all out, like Quick Load.

I wasn't sure of QuickLoad had become a dirty word here.

I used extensively 5+ years ago. I had stepped away from the sport for a bit...

Like you said if you put in the time it gives great results. I found it to have good value.

I lost my discs and the computer that had it died of old age. Waiting on new discs from UK as the US distributor doesn't seem to provide any support. It's as if your not buying something eff off. That opinion was developed over 10+ years of dealing with them. (yes, that was a opening to rag on them for poor customer support).

 

[asd9055]

I wasn't sure of QuickLoad had become a dirty word here.

I used extensively 5+ years ago. I had stepped away from the sport for a bit...

Like you said if you put in the time it gives great results. I found it to have good value.

I lost my discs and the computer that had it died of old age. Waiting on new discs from UK as the US distributor doesn't seem to provide any support. It's as if your not buying something eff off. That opinion was developed over 10+ years of dealing with them. (yes, that was an opening to rag on them for poor customer support).

Get GRT, it is free, it can even help you tune your load
I still use QL and GRT. Have Ben using QL before windows 10 came out

 

[fseaman]

Get GRT, it is free, it can even help you tune your load
I still use QL and GRT. Have Ben using QL before windows 10 came out

Link to GRT

 

[asd9055]

Link to GRT

start [Gordons Reloading Tool Community]

www.grtools.de

Make sure you watch the videos out there and also there is a lot of help on discord. Link to GRT Discord under "Help" on GRT
It does not have as extensive database as QL, but a new update to come in a couple of months

 

[ARlife4me]

well, if weight on the end of a muzzle is bad and could be good, then my 2# 30cal rated brake on my 338lm (clearance is good for bullet to clear) then i need to put results on paper to finalize it. ammo used is imi 250smk. bought 1k @ $1.47/per. the brake could weigh a bit more, but haven't weighed it in 5 years. a very low-cost brake (less than $50 iirc) initially bought for a 30cal, but then bought the lm and gave it a go after making sure there was enough clearance.

 

[BillLarson]

I have a Christenson Long Range Mesa in 6.5 Creed, I had 3 loads that I had been working with and decided to load 6 of each ,shoot the first 3 of each load for accuracy the shoot the last 3 of each with the Magneto Speed on my barrel, I thought anything you hang on your barrel could cause to accuracy to go south, so I shot 3 of each with the loads. Well I about died.............the best of each 3 shot groups were about 3/4" to 7/8ths,I put the magneto speed on the barrel and shot each 3 shot group testing velocity and S.D. Each load tested shooting at the same bull produced 1/4" 3 shot groups, best s.d. was 7.0 worst was 11.0 velocity ran from 2838 down to 2800, cartridge length was from 2.875 to 2.860 and 2.835, used 147 Hornady and Saybul6.5 powder I can't go around shooting all the time with a magneto Speed on the barrel, the magneto speed weighs 6.3 oz. ,HELP Pete

Pete.......Revisited this thread...... very interesting.....carefully and accurately weigh magneto speed...... duplicate it`s weight with something to fit on barrel non obtrusive.... .500"MOA+ is too much to give up without trying to duplicate.....