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.243 load help

 
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  #1  
Old 12-13-2010, 12:11 PM
T F T F is offline
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.243 load help

I have a savage .243 with a 1 in 9.5 twist with 22" barrel .went out this weekend to give it the first shots .groups of 1 inch at 100 yards . I'm using Barnes 85gr tsx with 45.5 gr of hunter powder . not so good . any help with this . as I live in a lead free zone I need to stay with the lead free stuff and have had great luck with barnes with all my other rifles.
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Old 12-13-2010, 02:33 PM
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Re: .243 load help

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Originally Posted by T F View Post
I have a savage .243 with a 1 in 9.5 twist with 22" barrel .went out this weekend to give it the first shots .groups of 1 inch at 100 yards . I'm using Barnes 85gr tsx with 45.5 gr of hunter powder . not so good . any help with this . as I live in a lead free zone I need to stay with the lead free stuff and have had great luck with barnes with all my other rifles.
You could have several things going on. the 9.5 twist rate is optimized for about 100 grain 243's. The powder that you using is between H4350 and 4831. So IMO you are not really using it with a 85 grain and 22 inches of barrel. It's close though. i'd look a a burn rate chart and find a powder slightly faster than H4350. Like H414, h380, or your Big game (Ramshot)

You didn't say a depth to the lands.
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Old 12-13-2010, 03:48 PM
T F T F is offline
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Re: .243 load help

You didn't say a depth to the lands.???? I'm new at this sorry I dont know what this is.. I went with the hunter powder becuse that is what barnes said works the best in there reloading book #4. 100 gr bullet would be nice but barnes stops at 85 gr .. on the powder how about vihtavuori n540 I have some of that ..
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Old 12-13-2010, 05:15 PM
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Re: .243 load help

N540 would work. If you loading book doesn't give a certain powder you can always go to a burn rate chart and figure out very close to what you might need for a starting load. Which a few grains less the max load of a faster burning powder is safe. (less Pressure because it is slower burning.)

Powder Burn Rates


You need to read up on the bullet seating depth. Your .243 105 - 107 gr boat tailed hollow points are very long bullets compared to your 70 gr varmint bullet. So you have to figure out what max length the bullet can be seated out to just barely touch the barrel rifling lands when you jack the bolt all the way down.

You need a long cleaning rod or rod of some type in case you get the bullet left in the rifling when you jack the case out. You can also buy the bullet seating length tool.

Just seat the bullet way out when you first load it and you carefully jack the bullet in. If it touches stop and jack it out. Put it back in the seater with a couple more turns down on it and try again. You want to get to point where you see the probably 4 dings on the sloped edge of your bullet nose with the bolt fully closed. Now with a caliper measure the length of you bullet/case total length. Now write the figure in your reloading book notes for that 85 grain bullet. Pressure and accuracy is affected by how close the bullet is placed near the rifling lands Now you need to test where the sweet spot is for your rifle. So load up 3-4 bullets with the loading seater turned down a thread or so and then caliper the round to make it .003 shorter than actually touching the lands. The 3-4 more rounds .006 shorter.......... Read up on bullet seating depth.

but anyway. Get your groups down small. Make good notes on seating depth for each type of bullet grain.

Only put one bullet in at a time. The recoil can dent the tips on any soft pointed bullet or maybe change the seating depth on hard nosed bullets. Always keep your bullets at the same temperature or testing goes out the window. Bullets sitting in the sun make more pressure when they are shot.
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Old 12-13-2010, 07:47 PM
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Re: .243 load help

thank you for the info... I will get started with all this and load up many diferant round's and see what I can find to work the best . I have been thinking about getting a bullet seating length tool. but many others said dont worry about it as long as it fits its good ..I will let you know what i find
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Old 12-13-2010, 07:56 PM
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Re: .243 load help

Since I don't live in California, maybe you can help me out a little.

By 'lead-free zone', do you mean you can not have exposed lead, or you just can not have lead at all?

Barnes isn't the only company offering 'lead free' projectiles.....
Nosler is offering: Nosler E-Tip Bullets 243 Caliber, 6mm (243 Diameter) 90 Grain Spitzer Boat Tail Lead-Free Box of 50 - MidwayUSA


Scott
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Old 12-13-2010, 11:10 PM
T F T F is offline
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Re: .243 load help

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Originally Posted by ScottB View Post
Since I don't live in California, maybe you can help me out a little.

By 'lead-free zone', do you mean you can not have exposed lead, or you just can not have lead at all?

Barnes isn't the only company offering 'lead free' projectiles.....
Nosler is offering: Nosler E-Tip Bullets 243 Caliber, 6mm (243 Diameter) 90 Grain Spitzer Boat Tail Lead-Free Box of 50 - MidwayUSA


Scott
here in CA there are lead free zones no hunting with any lead except birds with shot.and some zones lead is ok. I have tryed the nosler lead free had much better groups with barnes but that was with the 270 and .223 might have to try nosler with the .243 . just ordered 200 more barnes 85gr tsx to try some diferant powder and loads
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