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#2852264 - 08/10/15 07:51 PM Re: Cfe 223 and hot weather [Re: dennyd]
joed Offline
Die Hard Member II

Registered: 01/02/11
Posts: 1252
Loc: OH
I too try to stay away from ball powders anymore. When I first tried H380 I was very disappointed in the fall.

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#2862910 - 09/19/15 08:43 PM Re: Cfe 223 and hot weather [Re: dennyd]
Campower Offline
Seasoned Member

Registered: 09/14/15
Posts: 179
Loc: Maine
I've been using CFE223 in my 308 with 175 smk and 175 tmk for awile now with no such signs.. and we here in maine have some of the most radical temp changes in very short periods of time. Never tried it in a 223 so I can't really say much regarding the OPs issue..

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#2863143 - 09/20/15 06:32 PM Re: Cfe 223 and hot weather [Re: dennyd]
ackleyman Online
PM senior

Registered: 01/08/03
Posts: 8624
Loc: Hickville
I have never had this kind of problems with H335, Win 748, H380, and Win 760 going from 75* to 100*. I do not let my ammo cook in the Sun nor do I let a round cook in a hot chamber. These two issues are the blame for a lot of "temp sensitive" issues.

Perhaps you should have Wintertime loads and summer loads(Sub 35* and 75* and above loads)

Also, rounds sitting in the sun will develop sky high pressures. Rounds cooking in a hot AR chamber send pressures soaring.

You guys that live in those super cold Winters have rough conditions to work up a load in.

There is some good information in this thread, already.

I wonder how many hundreds of tons of H335 have been loaded for AR15's for temps from minus 25*-140*?

A version of H322(T32) was what was making all those Viet Nam M16's jam up from not being clean. Army changed to a non canister H335 because it was so much cleaner buring...Surprise...surprise!!

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#2864615 - 09/24/15 10:02 PM Re: Cfe 223 and hot weather [Re: ackleyman]
dennyd Offline
Seasoned Member

Registered: 12/13/08
Posts: 498
Loc: mn
Thats what i am saying, i would want two loads if i wanted max loads both times of the yesar, i don't,so i won't. H335 never gave me problems.
Originally Posted By: ackleyman
I have never had this kind of problems with H335, Win 748, H380, and Win 760 going from 75* to 100*. I do not let my ammo cook in the Sun nor do I let a round cook in a hot chamber. These two issues are the blame for a lot of "temp sensitive" issues.

Perhaps you should have Wintertime loads and summer loads(Sub 35* and 75* and above loads)

Also, rounds sitting in the sun will develop sky high pressures. Rounds cooking in a hot AR chamber send pressures soaring.

You guys that live in those super cold Winters have rough conditions to work up a load in.

There is some good information in this thread, already.

I wonder how many hundreds of tons of H335 have been loaded for AR15's for temps from minus 25*-140*?

A version of H322(T32) was what was making all those Viet Nam M16's jam up from not being clean. Army changed to a non canister H335 because it was so much cleaner buring...Surprise...surprise!!

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#3241008 - 04/07/20 09:45 PM Re: Cfe 223 and hot weather [Re: dennyd]
Prairiedogks204 Offline
New Member

Registered: 04/04/20
Posts: 3
Loc: Missouri
I've shot plenty of prairie dogs in hot weather. The trick is to keep ur gun cool and keep your ammo in the shade. To many people leave their ammo to cook out in the sun. Let it sit long enough and it goes from nitroselious to nitroglycerin. Your basically firing a stick of dynamite. I've had zero issues with cfe 223 and h380, never once had a issue. Take care of your ammo loads!! If your worried about hot weather remember shade is your best friend!!

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#3241059 - 04/08/20 10:57 AM Re: Cfe 223 and hot weather [Re: dennyd]
ackleyman Online
PM senior

Registered: 01/08/03
Posts: 8624
Loc: Hickville
Remember, I had no problems going from 75-100*, but I did have the common sense to not load the very top end max load, also.

The folks that hunt in 32* and below weather are going to have to develop two loads to get the very best accuracy.

Even non temp sensitive powders are temp sensitive that I have found, H4350, H4831, and Varget.

Learning to reload for best accuracy has a life time learning curve. So, it is prudent to expect ALL powders to be temp sensitive, use NON temp sensitive powders when you can, but the real test comes from shooting groups at the range in various weather conditions.

For people that want to be lazy and not think, life's learning curve can be rough, especially if you are shooting some distance.

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#3241252 - 04/10/20 05:56 AM Re: Cfe 223 and hot weather [Re: Prairiedogks204]
longrange454 Offline
Seasoned Member

Registered: 12/27/07
Posts: 455
Loc: N.W. ILLINIOS
Originally Posted By: Prairiedogks204
I've shot plenty of prairie dogs in hot weather. The trick is to keep ur gun cool and keep your ammo in the shade. To many people leave their ammo to cook out in the sun. Let it sit long enough and it goes from nitroselious to nitroglycerin. Your basically firing a stick of dynamite. I've had zero issues with cfe 223 and h380, never once had a issue. Take care of your ammo loads!! If your worried about hot weather remember shade is your best friend!!


I,ve been laughed at when i bring a heavy bath towel with me to place over by gun and ammo.

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#3241269 - 04/10/20 11:35 AM Re: Cfe 223 and hot weather [Re: dennyd]
rudymontana Offline
Die Hard Member II

Registered: 11/25/14
Posts: 1123
Loc: Montana,USA
I use CF&E 223 in my 204 and 223. -20 degrees to the 90's. Never had a problem with it. I don't load max, don't need to. I keep my ammo in the shade or my backpack. Barrel gets hot I take a break. It is my favorite powder for these rounds.

Rudy

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