Well I finally made it to the range to shoot some H4831 and the 200 grain Barnes TSX. I also shot some 180 xbt and 200 nosler partitions.

200 TSX H4831
70---2815
71---2889
72---2919
73---2957, 2916

200 TSX IMR 4350
67---2913
68---2906 ??
69---2991, 2987 Too hot for my rifle

Nosler 200 Part H4831
71---2863
72---2908
73---2903, 2937


Nosler 200 Part RETUMBO
77---2892
78---2936
79---2971
80---2980, 3009 Too hot for my rifle


180 XBT H4831
73---2956
74---3032
75---3082
76---3085, 3082

Sierra 200 BT H4831
70---2779, 2809

Barnes Original 200 spitzer (these are oldies I bought off ebay that came in the plain carboard box with Fred Barnes ink stamped on the lid).

H4831 70---2764, 2724, 2702

I think I am going to load up some more Barnes 200 TSX with H4831 and 72 grains. This will be around 2900 F.P.S.

Then the 200 Noslers I'll do 79 grains of Retumbo.

The 180 XBT I'll load with 76 of H4831.

If I do hunt with the 200 sierras or the old Barnes bullets I'll keep it at 70 grains of H4831. I would probably only use these for black bear.

My 300 win mag is a win 70 classic with a 26" barrel. The cases are federal and the primers cci 250.

Sounds like you've got some really good potential loads there. Good luck.

BTW, have you always used Federal Brass in this round?

How did they shoot accuracy wise?

TSX
Nosler
XBT
Sierra


Without guns we are subjects, with guns we are citizens

I have used some winchester brass in another 300 win . The federal brass allowed for safer pressures with my loads. I think it has a little more room than the win brass does.

I have not shot targets with the rifle yet. I sighted in good enough to make sure not to hit the chrony.

Hey, Guys I was wondering could you all give me a bit of help? I don't have a chrony yet and I was wondering, do any of you all know how fast a 200 sierra is traveling when it is pushed by 71gr of IMR 7828 in a 26' barrel? If you know exactly or a round about guesstimate would be fine. Thanks.

two shots of 71 grains of IMR 7828 with 200 TSX
gave me 2790 and 2766.


This was out of my 26in. model 70 that I did the above loads with.

IMR-7828 71gr.=2656fps 72gr.=2714fps.
with Winchester case, Fed 215 primer and
Nosler 200gr partition bullet. This was chronographed back in 1993. Think I had
a very slow lot of powder. Gary

quote:

200 TSX IMR 4350
67---2913
68---2906 ??
69---2991, 2987 Too hot for my rifle

RMiller. Based on your figures, I belive that the 67 gr. load is probably right at the top level of pressure for the powder. It's too bad you didn't have loads of say 65 and 66 gr. as well with chrono data. I'd liked to have seen the velocity proression from that level to where you stopped. Powders are designed to work within a certain pressure range. As you increase the charge, pressure naturally goes up, as does velocity in a relatively linear manner. Once you have exceeded that working pressure range, velocity can either make a big spike upwards, or can deliver a lower velocity such as you experienced with your 68 gr. load.
based on that, I belive your 67 gr. load is either at the absolute maximum or slightly above the absolute maximun for your rifle.
Looking at the other loads, I feel that for the TSX/H-4831/ 72 gr. is above max, Nosler 200/H-4931/72 gr./72 and 73 are above max, Nosler 200/RETUMBO/ is bordeline and may be a bit too hot at 78 gr.. For the 180 XBT, I think the 74 gr. load is a bit too hot.
Again, it would have been nice to have load and velocites from data one and two grains less than what you posted.
Personally, I believe you're pushing the envelope dangerously with some of those loads.
Paul B.

I may try some lighter loads to see what the velocity is.

None off these loads are over what I found in reloading manuals.

The loads I call too hot were the ones that started showing ejector marks on the cases. There were no other signs of high pressure.