Author Topic: IMR-4350 for 45/70 Gov't  (Read 1672 times)

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Offline rms4570hr

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IMR-4350 for 45/70 Gov't
« on: May 11, 2006, 01:28:32 PM »
What is a good load and bullet type for the 45/50 gov't useing IMR-4350.I'll be shooting this load in the H&R 45/70 gov't barrel on a ultra hunter single shot rifle.These loads will be used mostly for whitetail deer hunting.





rms270hr
You know handi rifles are like lays potato chip's with the chip's you can't eat just one same with the handi rifle's you can't buy just one.

rms270hr

Offline Blackhawk44

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IMR-4350 for 45/70 Gov't
« Reply #1 on: May 11, 2006, 01:43:27 PM »
Don't know about 4350 from experience, but for my Browning 1886 with 400gr gas checked bullets, of 2495, 5744, RL7, 3031, H322, 4198 and Varget, by a wide margin, Varget was best followed by 3031.  The others were quite a distance behind.  Velocities of about 1600fps are possible while staying within trapdoor pressure ranges.  With a straight case, I believe 4350 to be far too slow and normally would not even think of trying it.  BOL.

Offline ricciardelli

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IMR-4350 for 45/70 Gov't
« Reply #2 on: May 11, 2006, 02:53:55 PM »
I'm not all that enthusiastic about IMR-4350 or H-4350 for the .45-70.

I got my best results, using bullets from 300 grains to 500 grains, with IMR-4198.  Rifle was a Ruger #3.

Offline rms4570hr

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IMR-4350 for 45/70 Gov't
« Reply #3 on: May 11, 2006, 04:37:01 PM »
Quote from: ricciardelli
I'm not all that enthusiastic about IMR-4350 or H-4350 for the .45-70.

I got my best results, using bullets from 300 grains to 500 grains, withIMR-4198.  Rifle was a Ruger #3.




    Hey ricciardelli what about the IMR-4320 i saw it mentioned on steves page he's got it from 47.0 to 54.0 max with a 300 grain bullet.


rms270hr
You know handi rifles are like lays potato chip's with the chip's you can't eat just one same with the handi rifle's you can't buy just one.

rms270hr

Offline EsoxLucius

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IMR-4350 for 45/70 Gov't
« Reply #4 on: May 11, 2006, 04:41:30 PM »
With IMR 4350 in the 45-70 you could virtually fill the case to the base of the seated bullet and barely bust 28,000 PSI.  Far better powder choices as demonstrated by the dearth of 45-70 load data with IMR 4350.
We learn something new everyday whether we want to or not.

Offline ricciardelli

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IMR-4350 for 45/70 Gov't
« Reply #5 on: May 11, 2006, 07:10:44 PM »
Quote from: rms270hr
Quote from: ricciardelli
I'm not all that enthusiastic about IMR-4350 or H-4350 for the .45-70.

I got my best results, using bullets from 300 grains to 500 grains, withIMR-4198.  Rifle was a Ruger #3.




    Hey ricciardelli what about the IMR-4320 i saw it mentioned on steves page he's got it from 47.0 to 54.0 max with a 300 grain bullet.


rms270hr


I had a long talk with the guy who runs stevespages...

He said that IMR-4198 was the best all around powder in his little Ruger #3 with bullets from 300 grains to 500 grains.  (Just as he posted here...)

However, in the data pages other powders are selected, because when he tested the .45-70 with a longer barreled rifle they proved to be a little better, depending on bullet weight.

Sometimes I really think that guy has a split personality!

Offline EsoxLucius

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IMR-4350 for 45/70 Gov't
« Reply #6 on: May 12, 2006, 05:11:11 AM »
Here is an example of the range of powders that should be considered for use in the 45-70:

80. N130 (Vihtavuori)
81. SP-3 (Vectan)
82. 680 (Winchester)
83. N200 (Norma)
84. 1680 (Accurate)
85. AR2207 (ADI)
86. H4198 (Hodgdon)
87. N133 (Vihtavuori)
88. 4198 (IMR)
89. BM1 (ADI)
90. Brig 4197 (Scot)
91. 2015 XMR (Accurate)
92. Brig 3032 (Scot)
93. Reloader 7 (Alliant)
94. 3031 (IMR)
95. Benchmark (Hodgdon)
96. BM2 (ADI)
97. N201 (Norma)
98. Brig 322 (Scot)
99. AR2219 (ADI)
100. H322 (Hodgdon)
101. X-Terminator (Ramshot)
102. 2230 (Accurate)
103. 748 (Winchester)
104. Reloader 10X (Alliant)
105. BLC-2 (Hodgdon)
106. AR2206 (ADI)
107. 2460 (Accurate)
108. H335 (Hodgdon)
109. TAC (Ramshot)
110. H4895 (Hodgdon)
111. 2495 XMR (Accurate)
112. AR2206H (ADI)
113. Reloader 12 (Alliant)
114. 4895 (IMR)
115. Brig 4065 (Scot)
116. N135 (Vihtavuori)
117. Varget (Hodgdon)
118. 5000 (Vectan)
119. AR2208 (ADI)
120. 4064 (IMR)

Even IMR 4320 is to slow for optimal loads, particularly with barrels 26" or shorter.
We learn something new everyday whether we want to or not.