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Discussion Starter · #1 ·
Here are some chrono results I got at the range last Sunday. These loads go BEYOND any published MAX LOADS I could find so this data is being posted for informational purposes only – I DO NOT RECOMMEND USING ANY OF THESE LOADS FOR ANY PURPOSE WHATSOEVER.

Speer 170g Flat-SP, COL 2.5420”, WW brass, CCI 200, H4895, roll crimp in groove
30.0 H4895 = 2128fps
30.5 H4895 = 2180fps
31.0 H4895 = 2188fps
31.5 H4895 = 2222fps
32.0 H4895 = 2244fps
32.0 H4895 = 2306fps
33.0 H4895 = 2333fps MAX in my rifle
33.5 H4895 = 2372fps


Nosler 170g RN, COL 2.4890”, WW brass, CCI 200, H4895, roll crimp in groove
30.5 H4895 = 2140fps
31.0 H4895 = 2196fps
31.5 H4895 = 2214fps
32.0 H4895 = 2243fps
32.0 H4895 = 2307fps
33.0 H4895 = 2313fps
33.5 H4895 = 2359fps MAX in my rifle
34.0 H4895 = 2375fps


Once again, I am NOT recommending the use of this data and in fact recommend AGAINST using it. These results were obtained by intentionally exceeding published load data. The goal was to hit 40,000 CUP but since I have no pressure testing gear these loads may be well in excess of that pressure level.
 

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Discussion Starter · #4 ·
black river said:
Hello Coyote Hunter

Did you do any testing for accuracy with these loads.

No, there was only one load at each powder charge so I just shot at steel and called it good. Now that I have a velocity range I will build a set of loads with 3-4 cartridges at each powder charge and shoot for groups and velocity consistency. Had some 130 and 150g loads built for that purpose but it was too windy.
 

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I used to load upward till I got sticky extraction and back off two grains. Anymore I just work up to the book max and like it.
 

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Discussion Starter · #6 ·
35hunter said:
How did you determine MAX load in your rifle? Interesting info.
These loads were built using data from several different sources and using different components, as well as results I had obtained using the same case/primer/powder but with the Speer 130g and 150g bullets.

I had predetermined what I thought the max powder charge and velocity would be for SAAMI's 38,000 CUP max pressures. I then allowed a little more of each with the intention of exceeding SAAMI limit.

For example, Hodgdon's Basic Manual (1996) lists 32.0g H4895 with a 170g bullet for 2212fps according to my notes. In my first test, with the Speer 170g Flat-SP, I called 33.0g H4895 MAX. Then when I shot the Nosler 170g RN, I worked it up to the same velocity range.

Once again I want to stress that some of these loads are intentionally above published data and the results are provided for informational purposes only.

That said, I was considering reaming my .30-30 out to .307Win (52,000 CUP SAAMI MAP) and using .300 Savage data (46,000 CUP SAAMI MAP). I believe the loads I chrono'd and posted the results for are well below the 46,000 CUP level, but cannot guarantee it.
 
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