JDJones, or anybody with knowledge regarding barrel steel:
JD, in a past post of yours, I saw mention about BlackStar barrels being made of 17-4PH Steel(Supplied by Lothar Walter).
I looked at BlackStar's website: http://www.blackstar-barrels.com/body_accumax_ii2002.html
But, could not find anything about the barrel material. Next I looked at Lothar Walter's site: http://www.lothar-walther.de/html/1.php
Still could not find anything listing 17-4PH or the LW23 Steel which you mentioned is the Lothar Walter version of 17-4PH.
I did find LW23 on Brownells website: http://www.brownells.com/aspx/ns/store/ProductDetail.aspx?p=15610&title=RIFLE+BARRELS
Why do I ask, because I know that 17-4 PH is a very strong wear resistant Stainless Steel alloy with a 110,000 PSI yeild strength. Seems to me that it would make a superior long lasting rifle barrel.
If memory serves, this is the same material that Nesika builds thier actions from.
As a side note, 15-5PH has a yield strength of 145,000 PSI. Also very high strength and wear resisant properties. Jim Borden builds his Alpine actions out of this material which is why I selected his action for my next project.
(17-4PH has a slightly higher chromium content then 15-5PH for improved corrosion resistance)
For comparison purposes: 410 SST = 30,000 PSI yeild strength, 416 SST = 40,000 PSI yeild strength.
Now be aware that various heat treating and conditioning of metals changes their properties. I have no idea what condition the metals are in when the barrel manufacturers use them.
I would really like to clarify the mystery of which barrel materials will give the best accuracy vs. longevity.
Does anybody have a listing of pro's & con's for barrel materials.
Also, if anybody has personal experience with the Blackstar Accumax ll barrels or Lothar Walter LW23 barrels, I would love to hear your critique of these barrels.
Thank's in advance,
Vic
JD, in a past post of yours, I saw mention about BlackStar barrels being made of 17-4PH Steel(Supplied by Lothar Walter).
I looked at BlackStar's website: http://www.blackstar-barrels.com/body_accumax_ii2002.html
But, could not find anything about the barrel material. Next I looked at Lothar Walter's site: http://www.lothar-walther.de/html/1.php
Still could not find anything listing 17-4PH or the LW23 Steel which you mentioned is the Lothar Walter version of 17-4PH.
I did find LW23 on Brownells website: http://www.brownells.com/aspx/ns/store/ProductDetail.aspx?p=15610&title=RIFLE+BARRELS
Why do I ask, because I know that 17-4 PH is a very strong wear resistant Stainless Steel alloy with a 110,000 PSI yeild strength. Seems to me that it would make a superior long lasting rifle barrel.
If memory serves, this is the same material that Nesika builds thier actions from.
As a side note, 15-5PH has a yield strength of 145,000 PSI. Also very high strength and wear resisant properties. Jim Borden builds his Alpine actions out of this material which is why I selected his action for my next project.
(17-4PH has a slightly higher chromium content then 15-5PH for improved corrosion resistance)
For comparison purposes: 410 SST = 30,000 PSI yeild strength, 416 SST = 40,000 PSI yeild strength.
Now be aware that various heat treating and conditioning of metals changes their properties. I have no idea what condition the metals are in when the barrel manufacturers use them.
I would really like to clarify the mystery of which barrel materials will give the best accuracy vs. longevity.
Does anybody have a listing of pro's & con's for barrel materials.
Also, if anybody has personal experience with the Blackstar Accumax ll barrels or Lothar Walter LW23 barrels, I would love to hear your critique of these barrels.
Thank's in advance,
Vic