OK, I messed up !!!!!!!!!
I have a 30.06 load that takes 59gr of IMR4350 with a Barnes TSX 168gr round in Nosler brass. Tonight I screwed up & used 59gr of H4350 instead of the IMR4350, what a dimwit !
The question is, will the H4350 @ 59gr have too much presure, will it damage the brass or the barrel??????????????
Guys, this goes to show that if your mind & body is not @ 100 % don't try & load. I've got a head cold that would kill the normal human being & got the stupid notion that loading for a while would make me feel better. Treat me gentle, I feel bad enough. Thanks.

my advice would be pull the bullets and reload with the imr powder. the numbers are the same but the burn rate is not. close but not the same. It would make a difference in the load pressures. It's an honest mistake, just glad you caught it in time. Happy shootin' Dave

Pull the bullets. roger

Always good practice to work-up to a max load from below. I wouldn't pull the bullets, but I'd load in addition 57, 57.5, 58, 58.5, 59 grs. of H4350,...etc. until I achived my expected velocity, ~2950 fps with a 24" barrel. I chronograph all my loads. H4350 and IMR4350 are not identical, but fairly close.

I'd start with the good advice AIU posted above. My experience has been that H4350 is a little bit slower than IMR 4350, so you may find your load is just fine - I'd just want to work up to it to be certain.

Who knows, you may have found a new favorite load.

I have the Hodgdon 26th edition "Data Manual" which shows 55 grains of H4350 as max for a 165-168 grain bullet, giving 48,400 cup. IMR-4350's max is 57 grains, giving 48,900 cup.
Both IMR and H4350 are shown at 59 grains WITH A 150 GRAIN BULLET . With either powder, you're over.

you have NOTHING to worry about, i have pressure tested both powders in a ballistic lab pressure gun and they are about the same.....have a look at the pressure data on the 06 in the reloading section that collins posted for me, that should give you the answer....if your still not happy , pull the bullet
sorry ...i just checked the spread sheets and i have not given collins the data to post, but i can assure you dont loose sleep over it!!
Daniel

quote:

Originally posted by Chop901:
I have the Hodgdon 26th edition "Data Manual" which shows 55 grains of H4350 as max for a 165-168 grain bullet, giving 48,400 cup. IMR-4350's max is 57 grains, giving 48,900 cup.
Both IMR and H4350 are shown at 59 grains WITH A 150 GRAIN BULLET . With either powder, you're over.

This is a very sensible and safe advice. However, the .30-06 is listed with pressures lower than, say, a .270 Win out of deference to weaker rifles thus chambered. It is common practice to be able to load a couple of grains more for the .30-06 in strong, modern actions to allow pressures closer to .270 level. This to be done by safely working up from below, naturally.

- mike

quote:

Originally posted by Chop901:
I have the Hodgdon 26th edition "Data Manual" which shows 55 grains of H4350 as max for a 165-168 grain bullet, giving 48,400 cup. IMR-4350's max is 57 grains, giving 48,900 cup.
Both IMR and H4350 are shown at 59 grains WITH A 150 GRAIN BULLET . With either powder, you're over.

O just checked Hodgdon's data on the internet and it lists 59 and 58 grains as max loads

quote:

Originally posted by M 98:
you have NOTHING to worry about, i have pressure tested both powders in a ballistic lab pressure gun and they are about the same.....have a look at the pressure data on the 06 in the reloading section that collins posted for me, that should give you the answer....if your still not happy , pull the bullet
sorry ...i just checked the spread sheets and i have not given collins the data to post, but i can assure you dont loose sleep over it!!
Daniel

There are a few that I regard as "expert" in the field when reading posts on the internet.....and M98 is one of them. Daniel has his shit together.....If he says it, I'd believe it!

Don't feel to bad.
I once loaded up some rounds for my 7mmSTW , packed my range box and just before I left I looked on my bench and the powder sitting there was not RL25. it was varget, I had to pull 25 bullets.
Pulling the trigger on one of those would have been shall we say interesting.
...tj3006

quote:

Originally posted by Tazfla:
I have a 30.06 load that takes 59gr of IMR4350 with a Barnes TSX 168gr round in Nosler brass. Tonight I screwed up & used 59gr of H4350 instead of the IMR4350, what a dimwit !

Why anyone would recommend using Hodgdon data with solid copper Barnes bullets is beyond me!

My Barnes data says 57 grains is MAX for 165\168 grain X bullets. Hopefully, you have worked up this loading that is 2 grains over max but using the TSX bullet.

I'd rather be safe than sorry...pull 'em.

I reiterate; pull the bullets! Start over and do it right! It'll HAMMER home the the lesson. roger

My thoughts on reloading is that I can fiddle with components to eventually arrive at a load that is very close to perfect for my individual rifle. In load development, I have seen certain combinations being very accurate until I go a bit higher where the accuracy falls off. You say that you have a load and I am presuming that you are pleased with it's accuracy. Why would you want to use anything else? I have developed a load for my 1958 Savage model 110 and I doubt that you would want to use my reloads on a hunting trip because you just wouldn't know what they would do. When you're 300 yards from the trophy of a lifetime, it's good to be able to trust your round. What would you use those rounds for, anyway?
Pull them.

Thank you all for your help. I will heed safety over chance & pull the bullets & start from scratch.
Just as a historical note, when I first developed this load, I started with the data from Barnes book for a 168 gr XLC BT. According to their data I started at 55.5 gr IMR 4350 & worked up to 59gr which gave me a .61 moa @ 100yds out of a Tikka T3 Hunter. The max load out of their data is 59.5gr of IMR 4350. Interesting note, in their web page it states:
"To compensate for the reduced pressures associated with the Triple Shock, you may have to work up 1 to 2 additional grains above listed loads to achieve equal pressures. Pressures can jump dramatically; therefore we recommend that you work up in 1/2 gr. increments until you are no more than 1 to 2 grains above the listed max load or until signs of excessive pressure are evident. Whichever comes first. You should watch for excessive case head expansion, sticky bolt lift, flattened primers or shiny spots on the base of the case. If you have case head expansion of more than .0005″ with a once-fired case, this is a sure sign of excessive pressure. You will have to measure your case head with a Blade Micrometer just in front of the extractor groove, or you can use a regular micrometer and measure the belt on belted cases, before and after shooting. When any of these signs appear, back down one full grain and you will have a max load for your gun". So technically, I could go 61.5gr according to what they are stating with this powder.
One thing I find curious is after being on the market for this long, why does Barnes not have a load for their TSX bullets ???
Thanks again to all, God Bless

quote:

Originally posted by Tazfla:
One thing I find curious is after being on the market for this long, why does Barnes not have a load for their TSX bullets ???
Thanks again to all, God Bless

Because it takes lots of time and effort to re-shoot every single cartridge combination in their load manual.

Makes sense.

Thanks

Steve's pages Both load are on the hot side, pull the bullets on a few and work up.

I also think 59 gr of either H4350 or imr 4350 is about max with 165/168 any bullet in a 3006 or pretty stiff with any bullet let alone a solid copper one

Hodgdon and Imr 4350 both have 59 gr max

http://data.hodgdon.com/cartridge_load_1.asp