22-250 and 4350

[Mr.Snerdly]

I have a question about some loads for the 55 and 60 grain bullets. According to the Hodgon data, they list a higher charge for the 60 grain bullet than the 55. I thought this might be incorrect but Speer does not list a 60 grain bullet but they do list a 55 and 70 grain. the powder charge for both weights is the same. I haven't looked at every powder there is but every one I see has a lighter charge as the bullet weight goes up. Is there something different about 4350 that would make sense to use a higher charge for a heavier bullet? I really don't want to load until I get a few opinions from people that have more knowledge than I have. I am pretty new at this and am learning.

[Ted_Feasel]

I have a question about some loads for the 55 and 60 grain bullets. According to the Hodgon data, they list a higher charge for the 60 grain bullet than the 55. I thought this might be incorrect but Speer does not list a 60 grain bullet but they do list a 55 and 70 grain. the powder charge for both weights is the same. I haven't looked at every powder there is but every one I see has a lighter charge as the bullet weight goes up. Is there something different about 4350 that would make sense to use a higher charge for a heavier bullet? I really don't want to load until I get a few opinions from people that have more knowledge than I have. I am pretty new at this and am learning.Not sure, 4350 is what I use for 6.5 creedmoor, h380 for 22-250... hard to go wrong with h380. I use it with 55gr and 62gr penetrators

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[8mm RUM]

Are you comparing the SAME bullets?
There is a difference in brands and style bullet, like flat vs boat tail.
PS I use Varget and 52 gr Berger.

[psharon97]

I've always used IMR 4064 in 22-250 with that weight of bullets

[celltech]

Different bullets have different jackets, bearing surfaces, ect... I have found higher loads for heavier bullets as well. Look at Hodgon data for 105/107/108 in .243. Max charge of H4350 goes from 37.5 to 41.1!

I am running mine a tad higher and have had -0- pressure issues. Start low and work your way up...

As for .22-250 I am pushing a 53gr Vmax to 3800 fps with 35.1gr of H4895.

[Texas10]

What are you shooting Douglas? Is it a stock rifle with a 12 or 14 twist barrel? If so, you're limited to light bullets, 40 to 60 grs max. I spoke briefly about an 8 twist 22-250 and heavier bullets on your other thread.

Here is a link to Berger's stability calculator. SG's of 1.5 or better is a well stabilized bullet. It's based upon length mostly but also wt. You'll need to have the bullet in hand to measure, or if you're lucky it'll be in a drop down menu. Plastic tipped bullets are slightly different due to Center of Gravity being slightly aft compared to a HP or soft point bullet. https://bergerbullets.com/twist-rate-calculator/

[hardnosestreetcop]

I have a question about some loads for the 55 and 60 grain bullets. According to the Hodgon data, they list a higher charge for the 60 grain bullet than the 55. I thought this might be incorrect but Speer does not list a 60 grain bullet but they do list a 55 and 70 grain. the powder charge for both weights is the same. I haven't looked at every powder there is but every one I see has a lighter charge as the bullet weight goes up. Is there something different about 4350 that would make sense to use a higher charge for a heavier bullet? I really don't want to load until I get a few opinions from people that have more knowledge than I have. I am pretty new at this and am learning.

Mr. Snerdly which 4350 are you wanting to use ? Because IMR-4350 is faster burning than H-4350. As bullet weight goes up a slower powder is needed.

[Ted_Feasel]

Mr. Snerdly which 4350 are you wanting to use ? Because IMR-4350 is faster burning than H-4350. As bullet weight goes up a slower powder is needed.Also bullet diameter is a BIG factor in burn rate. Think of it as the volume of the barrels. The bore had a specific volume to it and as a general rule, the less volume, the faster burn rate is needed.

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