Are H322 and Benchmark suitable CB powders in medium sized cases?

win94oz · August 9, 2014, 07:17 AM

Hi guys do you H322 or Benchmark in medium sized cases for CB loads to produce moderate velocities?

e.g. 6.5x55, 30-30 or 375w.

H322 is listed for jacketed in the 375W 27.0 1,603 fps, lower for cast 1400fps?

Benchmark is listed in the 30-30 for jacketed, 25.3 1,894 fps, lower for cast 1400fps?

Neither are listed for the Swede, but then H4198 is listed as the slowest cast powder and H4895 is listed as the fastest for jacketed! H322 and benchmark are both in between!

Is there anything about these powders or situations that could make them behave odd in reduced loads? For example in the way H110 does.

Clark · August 9, 2014, 01:25 PM

10 years ago I bought 32 pounds of pull down 60's 4895.

It is mostly used up now.

That bulk powder is much faster than canister 4895. Instead it works exactly like predictions made for H322 in the Quickload library in density, velocity, and pressure.
It is not as finely extruded at H322, so the RCBS uniflow powder measure must crunch it's way through the 4895.

That powder works well with cast bullets, and reduced loads.

win94oz · August 9, 2014, 03:20 PM

H4895 or H322?

Did you chrony the old 4895 to compare then?

Clark · August 9, 2014, 04:04 PM

I chronographed the bulk 4895 and it matches the velocity predictions for that much H322 in Quickload.

August 9, 2014, 07:17 AM	#1
win94oz Member Join Date: July 31, 2014 Posts: 24	Are H322 and Benchmark suitable CB powders in medium sized cases? Hi guys do you H322 or Benchmark in medium sized cases for CB loads to produce moderate velocities? e.g. 6.5x55, 30-30 or 375w. H322 is listed for jacketed in the 375W 27.0 1,603 fps, lower for cast 1400fps? Benchmark is listed in the 30-30 for jacketed, 25.3 1,894 fps, lower for cast 1400fps? Neither are listed for the Swede, but then H4198 is listed as the slowest cast powder and H4895 is listed as the fastest for jacketed! H322 and benchmark are both in between! Is there anything about these powders or situations that could make them behave odd in reduced loads? For example in the way H110 does.

August 9, 2014, 01:25 PM	#2
Clark Senior Member Join Date: December 4, 1999 Location: WA, the ever blue state Posts: 4,678	10 years ago I bought 32 pounds of pull down 60's 4895. It is mostly used up now. That bulk powder is much faster than canister 4895. Instead it works exactly like predictions made for H322 in the Quickload library in density, velocity, and pressure. It is not as finely extruded at H322, so the RCBS uniflow powder measure must crunch it's way through the 4895. That powder works well with cast bullets, and reduced loads. __________________ The word 'forum" does not mean "not criticizing books." "Ad hominem fallacy" is not the same as point by point criticism of books. If you bought the book, and believe it all, it may FEEL like an ad hominem attack, but you might strive to accept other points of view may exist. Are we a nation of competing ideas, or a nation of forced conformity of thought?

August 9, 2014, 04:04 PM	#4
Clark Senior Member Join Date: December 4, 1999 Location: WA, the ever blue state Posts: 4,678	I chronographed the bulk 4895 and it matches the velocity predictions for that much H322 in Quickload. __________________ The word 'forum" does not mean "not criticizing books." "Ad hominem fallacy" is not the same as point by point criticism of books. If you bought the book, and believe it all, it may FEEL like an ad hominem attack, but you might strive to accept other points of view may exist. Are we a nation of competing ideas, or a nation of forced conformity of thought?

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August 9, 2014, 03:20 PM	#3
win94oz Member Join Date: July 31, 2014 Posts: 24	H4895 or H322? Did you chrony the old 4895 to compare then?