pctechdude
New member
CAUTION: The following post includes loading data beyond or not covered by currently published maximums for this cartridge. USE AT YOUR OWN RISK. Neither the writer, The Firing Line, nor the staff of TFL assume any liability for any damage or injury resulting from use of this information.
I've been sitting on this bottle of BE-86 for a while and finally decided to do some testing. I wanted to duplicate the factory Speer 124gr +p load.
Seeing as I had the 124gr gold dot bullets, and much reading, I settled on a load. Charge weight of 6.3gr BE-86, seated to 1.125" crimped to 0.3765 and ignited by a winchester small pistol primer. The brass used was once fired blazer brass.
I headed outside in the cold and wind yesterday, with my gun, the ammo, and the chronograph. Temperature here in central ohio was ~65°F, 15mph west wind. sprinkling rain too lol.
Five shots
1261
1243
1241
1234
1219
Avg. 1240 fps
I carefully collected each piece of brass after each shot for measurement purposes, I decided to use the case from the 1261fps cartridge just for safety concerns.
The fired case measured 0.379" at the mouth and a case web measured at 0.386"
I took several measurements on this because the results were surprising to me. These measurements were showing hardly any expansion signs on the brass. They were basically 0.001~0.002" over a sized case.
While I know reading a primer is not best, there was no flattening, primer was still very round.
I made the assumption that Alliant's load data shows a max charge of 5.9gr BE-86 for a 124gr JHP. With the little expansion these rounds showed I'm drawing a conclusion of the fact that Alliant has some watered down load data on this. For safety reasons I believe. I'd like it if they published pressure data!
On a side note, I do know for a fact the factory Speer 115gr Gold Dot +p+ is charged with 8gr BE-86. The bullet is 0.528" long, and seated to 1.120".
The 124gr gold dot bullet is 0.570" long. I believe I could I could squeeze some more velocity but why risk it? This load actually slightly beat what I was attempting (Factory 1220fps), the coil was nice, almost soft, and the cases ejected about 2 feet to my right.
img upload
I've been sitting on this bottle of BE-86 for a while and finally decided to do some testing. I wanted to duplicate the factory Speer 124gr +p load.
Seeing as I had the 124gr gold dot bullets, and much reading, I settled on a load. Charge weight of 6.3gr BE-86, seated to 1.125" crimped to 0.3765 and ignited by a winchester small pistol primer. The brass used was once fired blazer brass.
I headed outside in the cold and wind yesterday, with my gun, the ammo, and the chronograph. Temperature here in central ohio was ~65°F, 15mph west wind. sprinkling rain too lol.
Five shots
1261
1243
1241
1234
1219
Avg. 1240 fps
I carefully collected each piece of brass after each shot for measurement purposes, I decided to use the case from the 1261fps cartridge just for safety concerns.
The fired case measured 0.379" at the mouth and a case web measured at 0.386"
I took several measurements on this because the results were surprising to me. These measurements were showing hardly any expansion signs on the brass. They were basically 0.001~0.002" over a sized case.
While I know reading a primer is not best, there was no flattening, primer was still very round.
I made the assumption that Alliant's load data shows a max charge of 5.9gr BE-86 for a 124gr JHP. With the little expansion these rounds showed I'm drawing a conclusion of the fact that Alliant has some watered down load data on this. For safety reasons I believe. I'd like it if they published pressure data!
On a side note, I do know for a fact the factory Speer 115gr Gold Dot +p+ is charged with 8gr BE-86. The bullet is 0.528" long, and seated to 1.120".
The 124gr gold dot bullet is 0.570" long. I believe I could I could squeeze some more velocity but why risk it? This load actually slightly beat what I was attempting (Factory 1220fps), the coil was nice, almost soft, and the cases ejected about 2 feet to my right.
img upload
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