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Discussion Starter · #1 · (Edited)
Got back from the range a little while ago and can happily report NO leading with .432" bullets. First up is a 257 grain cast round nose (.432") I was graciously supplied by "galaxieman". This load was put up in Federal brass, lit by a Win LP primer, powder was Unique at 8.9, 9.1, 9.3 and 9.5 grains. COAL was 1.672". The only load worth mentioning was 9.5 grains which produced a 2.070" three shot group at 100 yards and clocked 1275 fps on my chronograph. All other charges either missed the target entirely or grouped over 4".

Next up was a 265 grain Ranch Dog bullets that I received from forum members "rooterpig" and "Galaxieman" to try. "rooterpig's" bullets have copper gas checks and the Ranch Dog's supplied by "Galaxieman" have what appears to be aluminum gas checks. The Ranch Dog's were loaded in Starline brass, WLP primer, Blue Dot powder at 12.6, 12.8, 13.0 and 13.1 grains. COAL was 1.563". Best load turned out to be 13.1 grains at 1447 fps and three shots into 2.249" at 100 yards. All other charges grouped over 4 inches.

Last but not least was a Hornady 265 grain FN in Federal brass, CCI 350 mag primer, COAL was 1.627", powder- W296 at 19.2, 19.4, 19.6, 19.8 grains. Again, first two loads shot poorly but the last load grouped three into 1.852" with a velocity of 1481 fps. Next best was the 19.6 grain charge at 1.935" at 1450 fps. Tomorrow I'll be testing a 300gr XTP load along with more 265 grain Ranch Dogs.

Tom
 

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Doesn't sound like you're near max charge and it obviously likes velocity. I'd try it just a little hotter unless you're getting signs of pressure.

Luis
 
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Discussion Starter · #3 ·
I'm testing the Ranch Dogs today with 296 charges going right up to 13.7 grains, .3 grain below the book max.
 

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I'm testing the Ranch Dogs today with 296 charges going right up to 13.7 grains, .3 grain below the book max.
Is that figure correct?
 

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Discussion Starter · #5 ·
That load information is in the 8th edition Hornady Manual but, they developed the loads in the weaker Ruger semi-auto carbine. Load data for the TC and Redhawk revolver show much higher charges.

I tested the 265 grain Ranch Dogs I received from Galaxieman and the Hornady 300 gr XTP's. All loads shot dismally. The XTP loads were all over the target and velocities were waaaaaay to low using the book load data for the Ruger semi-auto. Back to the load bench to load heavier charges. I don't know what happened with the loads I put together with the Ranch Dog's but they shot poorly. Packing up my chronograph, I did find a number of the gas checks lying on the ground so that may have a lot to do with it. Extreme Spread and Standard Deviation figures were all over the place too.
 

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Tom - it's your data, but all of mine shows you are 10gr of 296 below book max and 400fps slow for a rifle. I also have some data close to yours that limits to much lower pressure. It does appear your bullets like velocity and you should have a lot of room to grow with those loads.

Jeff
 
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Discussion Starter · #7 · (Edited)
Made a range trip yesterday and tested the 240 grain XTP, 300 grain Cast Performance WFNGC and the 300 grain XTP. The 240 grain XTP was loaded in Starline brass trimmed to 1.275". Primer: CCI 350, COAL: 1.622", powder-W296 at 24, 24.3, 24.6 and 24.8 grains. This data was obtained from the Contender section of my 8th edition Hornady manual. There testing was done with a 14" barrel. 24 grains averaged 1708fps and grouped only two on the target with the first going over the top of the target frame. SD-58, ES-83? Scope adjusted 10" down and the next load at 24.3 grains averaged 1842 fps, and grouped 4.958" SD-64, ES-114! Next 24.6 grains averaging 1877 fps, SD-58, ES-115! Grouped 3.652" with two rounds 1.683". Last was 24.8 grains yielding 1848 fps, SD-55, ES-108! Group 4.660" with two into 1.918". Considering how well the earlier 240 grain FN I tested shot into .800", this was shocking!

Next up (actually the first load tested) was the 300 grain Cast Performance WFNGC. Loaded in Federal brass and lit by Win LP primers. COAL: 1.600". Powder- IMR 4227 at 17.5, 17.8, 18.1 and 18.4 grains. 17.5 grains averaged 1233 fps, with an SD of 4 and an ES of 8 but shot all over the target? 17.8 averaged 1243 fps and again was all over the paper, SD-7, ES 15? 18.1 grains averaged 1262 fps with an SD-12 and an ES of 21 and again patterned worse than a shotgun. Last load was the 18.4 grains with a velocity of 1285 fps, an SD of 2 and an ES of 5. This load suddenly shrunk down to a three shot group at 100 yards of 1.270". My supply of IMR 4227 is very low and none has been available in my area for a year now so more testing will be limited but the charges definitely need to increase.

Last is the 300 grain XTP. Loaded in Federal brass and lit by Win LP's, COAL: 1.622", IMR 4227 at 18.5, 18.7 and 19.0 grains. Contender data again used. 18.5 grains averaged 1247 fps with an SD-39 and ES-78, group: 2.781". 18.7 grains averaged 1262 fps, SD-6 and ES-13, grouped 2.895". 18.9 grains averaged 1273 fps, SD-22 and ES-43 with a group of 2.207". 19.0 grains yielded 1284 fps with the SD-19 and ES-38 and grouped 2.799". Again, low stock of 4227 hampers extensive load development. All the Federal and Starline brass had the flash holes deburred and primer pockets uniformed same as I do for my bench rest loads.

Tom
 

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Factory loads with XTP's usually shoot VERY well for me. That's disappointing performance from them there for you.

Luis
 
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