Powder Comparison
06-04-2007 | 03:48 PM
#11
Boone & Crockett
Joined: Aug 2004
Posts: 11,703
Likes: 0
From: Idaho
RE: Powder Comparison
cayugad
Dave, Chrony is a well know instrument, lots of good things have been said about them..
I reviewed several before I bought mine, and I gotta admit that price and features were my concern... I ended up with a Digital Pro-Chrono - good features good prices...
http://competitionelectronics.com/store/merchant.mvc?Screen=CTGY&Store_Code=CE&Cat egory_Code=SP
I bought it directly form Competition Electronics
Dave, Chrony is a well know instrument, lots of good things have been said about them..
I reviewed several before I bought mine, and I gotta admit that price and features were my concern... I ended up with a Digital Pro-Chrono - good features good prices...
http://competitionelectronics.com/store/merchant.mvc?Screen=CTGY&Store_Code=CE&Cat egory_Code=SP
I bought it directly form Competition Electronics
06-04-2007 | 04:14 PM
#12
Nontypical Buck
Joined: Aug 2005
Posts: 1,081
Likes: 0
From: New Mexico
RE: Powder Comparison
Dave,
Maybe I missed something in the original post but it looks like to me they are comparing the weight of the powders when measured by equal volume I.e. 120gr of each powder weighs 120 for black and 96 for Pyro. It says volume to volume and approximate weight so that is what I interpreted.
So did I miss something?
Maybe I missed something in the original post but it looks like to me they are comparing the weight of the powders when measured by equal volume I.e. 120gr of each powder weighs 120 for black and 96 for Pyro. It says volume to volume and approximate weight so that is what I interpreted.
So did I miss something?
06-04-2007 | 04:22 PM
#13
Thread Starter
Dominant Buck
Joined: Feb 2003
Posts: 21,193
Likes: 0
From: Wisconsin
RE: Powder Comparison
Nope, I was just pointed that same thing out and I think you are right. I think what they are saying is, take a powder measure and set it at 100 grains. Pour in Goex and it will weight 100 grains. Pour in Pyrodex on the other hand and it will weigh 80 grains. So the chart does make sense that way. You would get more shots per pound of Pyrodex then a pound of Goex.
Although I am surprised that in a manual put out by CVA they would get into weights of powder since everyone usually says, use a volume measure when you work your charge up. Do not concern yourself with the weight of powders.
Although I am surprised that in a manual put out by CVA they would get into weights of powder since everyone usually says, use a volume measure when you work your charge up. Do not concern yourself with the weight of powders.
06-04-2007 | 05:24 PM
#14
Joined: Jan 2007
Posts: 426
Likes: 0
RE: Powder Comparison
ORIGINAL: cayugad
People, I could not agree more with you. I always was under the impression that when you measured by volume, that Black Powder and Pyrodex were the same in "power." Maybe Pyrodex had a little edge, but for instance this year I shot a deer with 90 grains of Goex 2f. I just can't believe that 72 grains of Pyrodex RS would produce the same energy down range.
When I shoot my Black Diamond XR with a 375 grain Buffalo Bullet SSB I load 100 grains of Goex 2f. And now they want me to believe that 80 grains of Pyrodex will produce the same results?
I do not own a chronograph. Of all people that should, I guess I am one who should own one. My friends around here are always asking me what velocity certain loads have and I tell them, it should be plenty but I have no idea.. or I read another person's posts who uses Triple Se7en (yes sabotloader I keep track of your numbers) and he got this with this load.. etc.
It was just when I saw that chart, it really threw me for a loop. I was shooting 110 grains of Goex 2f out of my .58 caliber GMB with a roundball. 88 grains of Pyrodex is going to give me that same thud down range? Well today I got out my scale, powder measure, Goex 2f, Pyrodex, Pyrodex P, Triple Se7en 2f, Triple Se7en 3f, and American Pioneer Powder 2f, and the new tubes and caps (thanks Lane) and measured out sixty different loads to replicate this chart and some other shooting suspicions I have. I was very careful in getting an average weight, and all loads are not more then .01 different then the others. Just to double check I even weighed some of the tubes to compare them. And they were equal.
If it don't rain tomorrow, I might just do some field shooting on my own to see what happens. My new shooting platform/rest I bought will be here tomorrow along with a couple hundred new sabots, and it will give me a chance to test that as well.
Are those Chrony .. chronographs any good they sell at Midsouth Shooters Supply?
People, I could not agree more with you. I always was under the impression that when you measured by volume, that Black Powder and Pyrodex were the same in "power." Maybe Pyrodex had a little edge, but for instance this year I shot a deer with 90 grains of Goex 2f. I just can't believe that 72 grains of Pyrodex RS would produce the same energy down range.
When I shoot my Black Diamond XR with a 375 grain Buffalo Bullet SSB I load 100 grains of Goex 2f. And now they want me to believe that 80 grains of Pyrodex will produce the same results?
I do not own a chronograph. Of all people that should, I guess I am one who should own one. My friends around here are always asking me what velocity certain loads have and I tell them, it should be plenty but I have no idea.. or I read another person's posts who uses Triple Se7en (yes sabotloader I keep track of your numbers) and he got this with this load.. etc.
It was just when I saw that chart, it really threw me for a loop. I was shooting 110 grains of Goex 2f out of my .58 caliber GMB with a roundball. 88 grains of Pyrodex is going to give me that same thud down range? Well today I got out my scale, powder measure, Goex 2f, Pyrodex, Pyrodex P, Triple Se7en 2f, Triple Se7en 3f, and American Pioneer Powder 2f, and the new tubes and caps (thanks Lane) and measured out sixty different loads to replicate this chart and some other shooting suspicions I have. I was very careful in getting an average weight, and all loads are not more then .01 different then the others. Just to double check I even weighed some of the tubes to compare them. And they were equal.
If it don't rain tomorrow, I might just do some field shooting on my own to see what happens. My new shooting platform/rest I bought will be here tomorrow along with a couple hundred new sabots, and it will give me a chance to test that as well.
Are those Chrony .. chronographs any good they sell at Midsouth Shooters Supply?
06-04-2007 | 06:26 PM
#16
Thread Starter
Dominant Buck
Joined: Feb 2003
Posts: 21,193
Likes: 0
From: Wisconsin
RE: Powder Comparison
Weighing out the loads was not all that bad. Once you get going, it really takes very little time. A couple hours is all. After all it was raining and I could not shoot. So I just made coffee, sat down at the bench and went to work. Now I have all these excellent loads to try...
And Cascadedad.. I did not take a nap today. Instead I slept in until 10:30 which was much better...Being retired is the best job out there.
And Cascadedad.. I did not take a nap today. Instead I slept in until 10:30 which was much better...Being retired is the best job out there.
06-08-2007 | 08:20 AM
#18
Boone & Crockett
Joined: Jan 2004
Posts: 12,823
Likes: 5
From: Eastern PA
RE: Powder Comparison
Here is another chart I found that may be of interest for this post:
http://pages.sssnet.com/go2erie/muzzle.htm
http://pages.sssnet.com/go2erie/muzzle.htm
06-08-2007 | 08:39 AM
#19
Typical Buck
Joined: Aug 2004
Posts: 986
Likes: 0
From: Mesa, Arizona
RE: Powder Comparison
I have the least expensive Crony also and find it very satisfactory. There is a little more benefit to the ones with the readout that is at the bench. Also if you get the one that has the face on the unit make a cover for the face or you will burn it out with the blackpowder that is not completely burned; I know as I had to send mine back to be repaired. I made a couple of covers out of plexiglas that protect the face and light sensors. I think there is one made commercially but can't remember if it was from Crony. I understand that sometimes the sabots and the wads are able to also take out the unit. Personally I have not had that problem yet. An additional note: I have read about people rating powder performance by the amount of recoil. I dida comparison of Black Mag'3 and Tripple Seven and the recoil that I felt from the T7 was way worse than the BM3 but the velocity of the BM3 charge was actually higher on the Crony. A lot of the felt recoil is due to the light off characteristics of the powder. T7 is a "quick burn" type where as BM3 is more like real black and takes some time to build pressure so the "felt recoil" is much softer. T7 is a good short barrel powder and BM3 is better in longer barrels. By the way BM3 is still in merger talks with MDM and is presently not shipping any. It will be coming back on the market in the future but I have not been given a date as yet.
06-08-2007 | 09:24 AM
#20
Giant Nontypical
Joined: Nov 2005
Posts: 6,585
Likes: 0
RE: Powder Comparison
Well we each reach our own conclusions according to our experance and training. I find that the pressures are very similar by volume but that pyrodex holds the pressure up a bit longer and further down the barrel giving slightly higher velocity up to about100gr by vol. after that the gap increases to where there is a couple of hundred ft differanceat 150gr.