See Post #5 for Updated Loading Data Table for .358 Hoosier.
Even though the weather was pretty cool and windy, I had a good time at the range last Saturday. I was testing my .358 Hoosier rifle with some Speer 180 gr HCFN (Hot Core Flat Nose) bullets. This was the first time I had tried these bullets. Usually I shoot the Hornady 180 or 200 gr SP bullets or the 180 gr Barnes TTSX FB for serious big game hunting (including deer). I fired four 3-shot groups at 50 yards and chronographed each shot. Below is a summary of results. I have also included a picture of the target. (Obviously, I used four different aiming points.) The picture includes additional loading and shooting data. No doubt a serious benchrest shooter (with good equipment and better shooting techniques), could have shot tighter groups, but these groups indicate the loads are certainly good enough for deer hunting in Indiana. No excessive pressure signs were noted.
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I MAY be able to add 0.5 grain more powder (H322 and Reloder 10X) with this bullet in the cases I am using (formed from Winchester brand of .358 Winchester brass). However, pending actual test results of 43.5 grains, I am regarding the 43 grain loads as maximum. Powder loading density is nearly 100 percent. A load of 43.5 grains should give slightly over 2600 feet per second muzzle velocity. CAUTION: if you are using thicker, heavier brass than mine you may find that 43 grains of powder is all that will go in your cases with this bullet seated to give an overall cartridge length of 2.48 inches. And, as a general rule I do not use compressed powder charges just to wring out a few more feet per second.
42 gr H322………Ave Vel = 2555 ft/sec.....Group = 0.82 inches
43 gr H322………Ave Vel = 2592 ft/sec.....Group = 0.80 inches
42 gr Rel 10X……Ave Vel = 2543 ft/sec…..Group = 1.20 inches
43 gr Rel 10X……Ave Vel = 2597 ft/sec…..Group = 0.60 inches
All handloading and shooting involves inherent risks beyond the control of the author. Therefore, the author assumes no liability whatsoever for use of the above data or other information contained in his posts.
FYI, I have been working on updating a table of loading data for the .358 Hoosier that I have been compiling over the last 3 years. Included will be 5 different bullets (of 180 or 200 grains) and 8 different powders. Of course, all 8 powders were not tested with each bullet. Hopefully, the table will be added to this thread in the next few days.
Even though the weather was pretty cool and windy, I had a good time at the range last Saturday. I was testing my .358 Hoosier rifle with some Speer 180 gr HCFN (Hot Core Flat Nose) bullets. This was the first time I had tried these bullets. Usually I shoot the Hornady 180 or 200 gr SP bullets or the 180 gr Barnes TTSX FB for serious big game hunting (including deer). I fired four 3-shot groups at 50 yards and chronographed each shot. Below is a summary of results. I have also included a picture of the target. (Obviously, I used four different aiming points.) The picture includes additional loading and shooting data. No doubt a serious benchrest shooter (with good equipment and better shooting techniques), could have shot tighter groups, but these groups indicate the loads are certainly good enough for deer hunting in Indiana. No excessive pressure signs were noted.
http://
I MAY be able to add 0.5 grain more powder (H322 and Reloder 10X) with this bullet in the cases I am using (formed from Winchester brand of .358 Winchester brass). However, pending actual test results of 43.5 grains, I am regarding the 43 grain loads as maximum. Powder loading density is nearly 100 percent. A load of 43.5 grains should give slightly over 2600 feet per second muzzle velocity. CAUTION: if you are using thicker, heavier brass than mine you may find that 43 grains of powder is all that will go in your cases with this bullet seated to give an overall cartridge length of 2.48 inches. And, as a general rule I do not use compressed powder charges just to wring out a few more feet per second.
42 gr H322………Ave Vel = 2555 ft/sec.....Group = 0.82 inches
43 gr H322………Ave Vel = 2592 ft/sec.....Group = 0.80 inches
42 gr Rel 10X……Ave Vel = 2543 ft/sec…..Group = 1.20 inches
43 gr Rel 10X……Ave Vel = 2597 ft/sec…..Group = 0.60 inches
All handloading and shooting involves inherent risks beyond the control of the author. Therefore, the author assumes no liability whatsoever for use of the above data or other information contained in his posts.
FYI, I have been working on updating a table of loading data for the .358 Hoosier that I have been compiling over the last 3 years. Included will be 5 different bullets (of 180 or 200 grains) and 8 different powders. Of course, all 8 powders were not tested with each bullet. Hopefully, the table will be added to this thread in the next few days.
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