H-4350 in a 243 ?

Bitman · March 23, 2009, 11:29 AM

I have access to some H-4350.
However, I wanted to use this in my 243 with the 70 grain Sierra BK's.
The manual shows this powder being used in the 80 grain and up bullets.
Can this powder be used with the 70 grain bullets, or is it to slow.

Sam06 · March 23, 2009, 11:51 AM

H-4350 from 41.4gr to 48gr That was off the internet so be careful with it. I think it would be better to use a powder in speed between RL-12 and RL 15 with that light of a bullet, with 4064 getting my vote. My .02 worth.

Quote:

101. Alliant RL12
102. IMR 4895
103. Scot Brig 4065
104. Vihta Vuori N135
105. Hodgdon Varget
106. IMR 4064
107. Accurate XMR 4064
108. Accurate 2520
109. IMR 4320
110. Norma N203
111. Vihta Vuori N140
112. Vihta Vuori N540
113. Accurate 2700
114. Ramshot Big Game
115. Alliant RL15

SL1 · March 23, 2009, 11:54 AM

It looks like it is too slow to make SAAMI max pressure with a case-full behind that bullet.

Probably too slow to be a good choice, but it would still shoot.

SL1

mkl · March 23, 2009, 12:50 PM

It wouldn't hurt to give it a try.

FWIW, I tried several of the medium burning rate powders in my model 70 winchester in .243, and had no luck getting small groups.

I had several pounds of IMR-4831 and made up some fouling shots using a 75 grain Sierra hollow point.

Turned out that the 4831 gave 1/2" groups.

The load was 47.5 grains of IMR-4831. This allowed the base of the bullet to rest on top of the powder charge, but no compression.

So I'd try the IMR-4350, but don't use the 47.5 grain charge since that is a faster powder than my 4831. Start low and work up.

Good luck.

mkl

Bitman · March 23, 2009, 02:41 PM

Would using a magnum primer help, being that this is a slower burning powder?
Or should I just move on to a faster burning powder?
I wouldn't call myself an expert on this, that's why I'm asking.

jamaica · March 23, 2009, 03:15 PM

Hornady gives a load for their 70 grain bullets.
243 Winchester H4350 44.0 up to 47.9 max.

T-Mac · March 23, 2009, 03:51 PM

It will prolly be lousy for your .243
You may as well just send the H-4350
to me.

crowbeaner · March 24, 2009, 05:43 PM

I save the 4350 for the medium weight bullets in my .243. I use 4895 or 4320 with the lightweights.

Bitman · March 25, 2009, 06:55 AM

I'm planning on pushing this 70 grain bullet to the max, as it will be used for some long range P.Dog shooting. I was told that by using a slower burning powder, it will help extend barrel life. Less throat erosion. I can use H-4895 or Varget, as I have those powders on hand. This will be a new load, as the gun is on order at the present time. Thanks, Dave

SATCH487 · March 25, 2009, 06:49 PM

My Rem 243 Liked 45 Grn Of 4350 With A 70 Nos Bt. Shot A Many Whistle Pigs With This Load Past 300 Yds. Hope This Helps.

crowbeaner · March 25, 2009, 06:50 PM

I shoot the Sierra or Speer 75 grain HP over 39.0 of 4895 for 3406 fps. That's in a short barrel; longer ones will be faster.

March 23, 2009, 11:29 AM	#1
Bitman Member Join Date: January 23, 2009 Posts: 22	H-4350 in a 243 ? I have access to some H-4350. However, I wanted to use this in my 243 with the 70 grain Sierra BK's. The manual shows this powder being used in the 80 grain and up bullets. Can this powder be used with the 70 grain bullets, or is it to slow.

March 24, 2009, 05:43 PM	#8
crowbeaner Senior Member Join Date: June 4, 2007 Location: Upstate SC Posts: 1,943	I save the 4350 for the medium weight bullets in my .243. I use 4895 or 4320 with the lightweights. __________________ If you want your children to follow in your footsteps, be careful where you walk. Beware the man that only owns one gun; he probably knows how to use it. I just hope my ship comes in before my dock rots.

March 25, 2009, 06:49 PM	#10
SATCH487 Member Join Date: March 25, 2009 Location: BRISTOL VA Posts: 16	4350 In 243 My Rem 243 Liked 45 Grn Of 4350 With A 70 Nos Bt. Shot A Many Whistle Pigs With This Load Past 300 Yds. Hope This Helps. __________________ SHOOT UNTIL THREAT IS NEUTRALIZED!

March 25, 2009, 06:50 PM	#11
crowbeaner Senior Member Join Date: June 4, 2007 Location: Upstate SC Posts: 1,943	I shoot the Sierra or Speer 75 grain HP over 39.0 of 4895 for 3406 fps. That's in a short barrel; longer ones will be faster. __________________ If you want your children to follow in your footsteps, be careful where you walk. Beware the man that only owns one gun; he probably knows how to use it. I just hope my ship comes in before my dock rots.

March 23, 2009, 11:54 AM	#3
SL1 Senior Member Join Date: November 8, 2007 Posts: 2,001	It looks like it is too slow to make SAAMI max pressure with a case-full behind that bullet. Probably too slow to be a good choice, but it would still shoot. SL1

March 23, 2009, 12:50 PM	#4
mkl Senior Member Join Date: April 25, 2008 Location: DFW area, Texas Posts: 494	It wouldn't hurt to give it a try. FWIW, I tried several of the medium burning rate powders in my model 70 winchester in .243, and had no luck getting small groups. I had several pounds of IMR-4831 and made up some fouling shots using a 75 grain Sierra hollow point. Turned out that the 4831 gave 1/2" groups. The load was 47.5 grains of IMR-4831. This allowed the base of the bullet to rest on top of the powder charge, but no compression. So I'd try the IMR-4350, but don't use the 47.5 grain charge since that is a faster powder than my 4831. Start low and work up. Good luck. mkl

March 23, 2009, 02:41 PM	#5
Bitman Member Join Date: January 23, 2009 Posts: 22	Would using a magnum primer help, being that this is a slower burning powder? Or should I just move on to a faster burning powder? I wouldn't call myself an expert on this, that's why I'm asking.

March 23, 2009, 03:15 PM	#6
jamaica Senior Member Join Date: March 24, 2006 Location: Northern Utah Posts: 705	Hornady gives a load for their 70 grain bullets. 243 Winchester H4350 44.0 up to 47.9 max.

March 23, 2009, 03:51 PM	#7
T-Mac Member Join Date: January 18, 2006 Location: Townsend, MT Posts: 99	It will prolly be lousy for your .243 You may as well just send the H-4350 to me.

March 25, 2009, 06:55 AM	#9
Bitman Member Join Date: January 23, 2009 Posts: 22	I'm planning on pushing this 70 grain bullet to the max, as it will be used for some long range P.Dog shooting. I was told that by using a slower burning powder, it will help extend barrel life. Less throat erosion. I can use H-4895 or Varget, as I have those powders on hand. This will be a new load, as the gun is on order at the present time. Thanks, Dave