Which 243 bullet for 1000 yards? DTAC, SMK, or?

c1steve

c1steve

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May 16, 2010
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#1
I am putting together a 243, and was planning on using DTACs. However they are so long, I suspect 107 grain SMK and other bullets will not work well in that barrel.

What do Hide members recommend for shooting to 1000 yards? Are DTACs the only way to go? I told PTG to make me their reamer designed for DTAC bullets, but I better call them asap if I am going to change this. Thanks for the help.
 
#3
Re: Which 243 bullet for 1000 yards? DTAC, SMK, or?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mike</div><div class="ubbcode-body">DTACS
</div></div>
 
#8
Re: Which 243 bullet for 1000 yards? DTAC, SMK, or?

dtac is made by sierra and that reamer will still shoot 107 great. dtacs,105 vld, and 107smk's are the ticket, also 108 berger non vld's shoot great.

dtacs are cheap and are great long range bullets period.
 
#10
Re: Which 243 bullet for 1000 yards? DTAC, SMK, or?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: wnroscoe</div><div class="ubbcode-body">1-7.5 twist 243 with 115 DTAC's </div></div>

I use 8 twist barrels with mine.
 
#12
Re: Which 243 bullet for 1000 yards? DTAC, SMK, or?

Well if Diggler44 and the custom rifle plumber say DTAC's, that is what I will go with.

PTG had two different DTAC reamers, one being short so the loaded round will fit in an AICS mag. However I am planning on using AW mags, so I told them to use the longer reamer. I am waiting for Kathleen at PTG to email me the print.

Diggler, when you have been using the DTACs and other bullets in the same rifle, do you know which reamer was used?
 
#15
Re: Which 243 bullet for 1000 yards? DTAC, SMK, or?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DrewF</div><div class="ubbcode-body">115 DTAC. I went through this same deal back a few months ago. </div></div>

Do you know which reamer was used on your barrel?

s
 
#16
Re: Which 243 bullet for 1000 yards? DTAC, SMK, or?

I couldn't tell you. I'd ask one of these gunsmiths what they would recommend. I will see if I can get ahold of the guy I used.
 
#17
Re: Which 243 bullet for 1000 yards? DTAC, SMK, or?

Well I am going to go with the reamer PTG suggested for DTACs. They have two, the shorter to be used if you have AICS mags.

In my search on the Hide for info on .243 reamers, someone suggested that the DTAC sized chamber will not work with other bullets. However I checked with the Tubb company, and they have plenty in stock. Initially I was concerned because Midway will not have any until the end of January.
 
#20
Re: Which 243 bullet for 1000 yards? DTAC, SMK, or?

Clinch River Bullets are definitely not favored by highpower and prone long range shooters.

It would be fair to say that no one at a high level uses them.
 
#21
Re: Which 243 bullet for 1000 yards? DTAC, SMK, or?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mike</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: juliomorris</div><div class="ubbcode-body">105 AMAX work great.</div></div>

The 105 will get smoked by the DTAC every time. </div></div>


Not smoked, but yes DTACS do give you a advantage than 10" at 1000 (240" compared to 249"). I've shot both the amax is more accurate in my rifle.
 
#22
Re: Which 243 bullet for 1000 yards? DTAC, SMK, or?

105gr Berger Hunting VLDs. John Whidden won this year's national long range championship using them. No DTACs smoked him.
smile.gif
Use what you like, but a shorter throat is optimal for the 105s versus the 115s. Glen Zediker gave some great advice in one of his many competition shooting books. "You can't go wrong chambering your competitive rifle for a Sierra bullet." If you get a chamber reamer for the SMK 107, it will be perfect for all the 105 VLDs also. On the other hand, if you get it chambered for the DTAC, it'll be good for only the DTAC or other 115s.

There are a few myths still circulating about the 115 DTAC: one of them is that it has a .595 BC. This was patently disproved by independent testing. The actual BC is around .547. Consider the fact that the 105gr bullets (.532BC) can be pushed 100-200fps faster and your choices start to look more like a wash...with lower recoil going to the 105s.

PS. John has won the long range championship 3 of the last 4 years....using the 105gr VLD.
http://bulletin.accurateshooter.com/2010...ng-range-title/

My best results come from jamming them 10-15 thousandths.
 
#23
Re: Which 243 bullet for 1000 yards? DTAC, SMK, or?

I second the 105 vld's. If you look at Bryan Litz G7 BC evaluations in his book, you'll see that the dtac doesn't have that much higher a BC than the 105 vld. However, because of the weight differential, the 105 can be pushed fast enough at the same pressure to overcome the minimal bc advantage of the 115.

Just remember to be on the lookout the first of the year for a Berger 105 hybrid similar to the 338 and 7mm hybrids that are already out. The bc should be dramatically higher than either the 105 vld or the dtac - and basically in the same league as the 6.5 139 scenar and the Sierra 142.

That's going to be the bullet to shoot!
 
#25
Re: Which 243 bullet for 1000 yards? DTAC, SMK, or?

Scooter i was responding to mike. I agree you the DTAC doesn't have he BC people quote personally I thought it was .545 which like I stated it only gives you about 10" over the amax at 1K.
I have had better luck with the AMAX but I have been meaning to play with the bergers but haven't had the chance. The amax is very accurate and Hornady didn't overstate it's BC the way other manufacturers do with theirs. If I'm not mistaken the 600 yard BR record was set using the amax.
 
#26
Re: Which 243 bullet for 1000 yards? DTAC, SMK, or?

You and use a 107 SMK and do well... Really no bullet is going to help you. That said I know many shooters that shoot both the 107s and 115 in the same gun. Don't over think it.
 
#27
Re: Which 243 bullet for 1000 yards? DTAC, SMK, or?

I shoot a 6XC and a .243. The .243 has a 1:8 twist and shoots the 107 SMK's and 115 DTAC's both very well.

The 6XC has a 1:7.5 and shoots the 107 SMK's and 115 DTAC's both very well.

I am currently shooting the 107 SMK's just cause I have a good supply of them on hand. I personally did not see much a difference between the two at 600 and 1000 yards.
I found this to be true with my 6XC bench rifle I use to own.

Take care,Stan

A video of me shooting my .243 at 1000 yards using the 107 SMK's.

<object width="425" height="350"> <param name="movie" value="http://www.youtube.com/v/v4-yODHzSO0"></param> <param name="wmode" value="transparent"></param> <embed src="http://www.youtube.com/v/v4-yODHzSO0" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"> </embed></object>
 
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