good load for .308 178 hpbt's with CFE 223?

Daze

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Minuteman
Nov 17, 2011
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Anybody have a pet load for 178 hpbt's? I'm shooting a LAR-8 with 26 in 1x10 twist barrel. I notice according to the Hodgdon guide the max load on CFE goes down from 47.5 gr to 45.1 when moving from the 175 smk to the 180 gr bullets. varget and many of the other max loads remain the same.
 
Re: good load for .308 178 hpbt's with CFE 223?

I use Lapua brass but find that I pop an occasional primer while shooting even low pressure loads. Is popping primers always a sign of high pressure? Or is it stretched primer pockets? How many times should I be able to load them. I'm probably on the 5th loading.
 
Re: good load for .308 178 hpbt's with CFE 223?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Daze</div><div class="ubbcode-body">I use Lapua brass but find that I pop an occasional primer while shooting even low pressure loads. Is popping primers always a sign of high pressure? Or is it stretched primer pockets? How many times should I be able to load them. I'm probably on the 5th loading. </div></div>
By popping you mean the primer is coming out? Id say that from shooting high pressure loads and your pockets are too big.
 
Re: good load for .308 178 hpbt's with CFE 223?

Lapua says this about their brass:

Lapua cases are the best in the world. The marksmen themselves think this way. The .220 Russian, for example, is the number one choice of the best benchrest shooters all over the world. All our cases are strong and uniformly precise.
Lapua cases are manufactured to be reloaded, again and again, dozens of times.
 
Re: good load for .308 178 hpbt's with CFE 223?

Yeah. I don't get it. I just fired some with 47.2 gr of CFE 223 and 178 hpbts with no problems. The other day I shot 45.5 gr of cfe 223 and 168 gr smk's and a primer came out. I don't get it. Shouldn't the highest pressures always be with a larger amount of powder? I have noticed that occasionally a max load is not as fast as a slightly less powder load. I chrono'd a 110 vmax load with 49.5 gr of xbr8208 and it shot faster than 50 gr of same.
 
Re: good load for .308 178 hpbt's with CFE 223?

I push 175 smk's with 47.5 with great results. But here is some food for thought. Why do you think the brass has issues. I'll bet there is more quality control in a piece of Lapua brass than there is in a 2 cent primer.
 
Re: good load for .308 178 hpbt's with CFE 223?

I didn't realize certain primers would be more likely to pop out. I know that the primers sure go in easy on the Lapua brass. My once-fired Winchester brass seemed a lot tighter. I tried 178 amax before but the red plastic tips get bunged up in the mag due to recoil So i switched to the higher BC hpbt's.
 
Re: good load for .308 178 hpbt's with CFE 223?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Daze</div><div class="ubbcode-body">Any particular brands smaller? </div></div>

I have:
WLR .207
WLRM .209
CCIBR2 .211
REM 9 1/2 .211
WOLF LR .211
MAGTECH 9 1/2 .212
CCI # 34 .212

so it looks like Win runs the smallest
 
Re: good load for .308 178 hpbt's with CFE 223?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Daze</div><div class="ubbcode-body">Yeah. I don't get it. I just fired some with 47.2 gr of CFE 223 and 178 hpbts with no problems. The other day I shot 45.5 gr of cfe 223 and 168 gr smk's and a primer came out. I don't get it. Shouldn't the highest pressures always be with a larger amount of powder? I have noticed that occasionally a max load is not as fast as a slightly less powder load. I chrono'd a 110 vmax load with 49.5 gr of xbr8208 and it shot faster than 50 gr of same. </div></div>

this can work opposite of what it seems it should, the higher pressure load can "lock in" the primer, while a loose primer can fall out with a lower pressure load

a "blown" primer is a completely different thing, usually the primer metal bubbles/flows into the firing pin hole from high pressure and some of the bubbles burst
 
Re: good load for .308 178 hpbt's with CFE 223?

Just shot my 178 bthp loads with 42.7 gr cfe 223. Unbelievable consistent velocity. 2,890fps. I'm very confused in that I was zeroed at 100 yards with my Leupold. According to my Ballistic app I should have done 40 .25moa clicks but I needed 76 clicks to be on at 600 yards. This defies logic or my app isn't right. These are .530 bc bullets.

I did manage to hit a small water jug at 811 yards twice. I expected an explosion since it should have 988 ft lbs of energy. It had a very small entry and exit like it was shot by a .22 long rifle.
 
Re: good load for .308 178 hpbt's with CFE 223?

Daze,

Something doesn't add up. You indicate that you are getting a MV of 2,890ft/s...138ft/s faster than published max with 0.2gr less than max charge. I know you posted 42.7gr, but i think you mean 47.2 based on your earlier posts.

How are you obtaining the MV? through a chrono? I would expect you to be around the published max (~25-30fps either way based on what others have posted).
 
Re: good load for .308 178 hpbt's with CFE 223?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Daze</div><div class="ubbcode-body">Just shot my 178 bthp loads with 42.7 gr cfe 223. Unbelievable consistent velocity. 2,890fps. I'm very confused in that I was zeroed at 100 yards with my Leupold. According to my Ballistic app I should have done 40 .25moa clicks but I needed 76 clicks to be on at 600 yards. This defies logic or my app isn't right. These are .530 bc bullets.

I did manage to hit a small water jug at 811 yards twice. I expected an explosion since it should have 988 ft lbs of energy. It had a very small entry and exit like it was shot by a .22 long rifle. </div></div>Bryan Litz says these are more like .502 bc (G1).
 
Re: good load for .308 178 hpbt's with CFE 223?

I just realized my LOS Angle was set to move with my iPhone. That screwed up my numbers some but even when I recalculate the number of clicks in the real world is still off by 25. So, do chronographs give over-rated velocities? (mine is an F1). Or could my .year old Leupold VX-3 6.5-20 be not tracking? Or the bc is much worse than .502?
 
Re: good load for .308 178 hpbt's with CFE 223?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Daze</div><div class="ubbcode-body">I just realized my LOS Angle was set to move with my iPhone. That screwed up my numbers some but even when I recalculate the number of clicks in the real world is still off by 25. So, do chronographs give over-rated velocities? (mine is an F1). Or could my .year old Leupold VX-3 6.5-20 be not tracking? Or the bc is much worse than .502? </div></div> I know that CFE 223 and 2000 MR are capable of increasing velocities in 308, especially in that approximate bullet weight. Still, it seems so fast. I'm shooting those bullets at a load of 45 gr of Varget which is max. I don't have a chronograph, but Lee lists that load at 2,690 fps with a 175 gr bullet. I can only make a guess here, but it would be the least surprising to me if the recorded speeds were the problem. Do you have access to another chronograph to check this? I'm sure the bc is correct. Brian Litz shows the G1 at .513 for 2500fps and .527 at 3000fps. At the speed your shooting you would actually be above the .502 G1 which is an average that includes lower velocities. If this turns out to be problem with your scope I know what powder I'm gonna try next.
wink.gif
 
Re: good load for .308 178 hpbt's with CFE 223?

I'll have to try another chronograph. Maybe it isn't right. I'm also getting as high as 4,000 fps readings on my 22-250 with 26" barrel with 53 gr vmax and 38.1 gr of CFE.
 
Re: good load for .308 178 hpbt's with CFE 223?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Daze</div><div class="ubbcode-body">I'll have to try another chronograph. Maybe it isn't right. I'm also getting as high as 4,000 fps readings on my 22-250 with 26" barrel with 53 gr vmax and 38.1 gr of CFE. </div></div>Sounds good. Be sure and give us an update after you have a chance to compare readings.
 
Re: good load for .308 178 hpbt's with CFE 223?

There must be something wrong with my chronograph. I'm getting 300 win mag velocities ou f a .308. Even Hornady's superformance .308 with 178 bthpHornady only gets 2775. Is 10 ft in front of the muzzle far enough? Could I be measuring muzzle blast instead?
 
Re: good load for .308 178 hpbt's with CFE 223?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Daze</div><div class="ubbcode-body">There must be something wrong with my chronograph. I'm getting 300 win mag velocities ou f a .308. Even Hornady's superformance .308 with 178 bthpHornady only gets 2775. Is 10 ft in front of the muzzle far enough? Could I be measuring muzzle blast instead? </div></div>Hopefully someone with better knowledge of chronographs than me will answer that. I think that they can get messed up with shadows. Are you getting any pressure signs like flattened primers or ejector marks?
 
Re: good load for .308 178 hpbt's with CFE 223?

Make sure to position your chrono far enough away to not be affected by muzzle blast.

You would need a 32" barrel & a stiffer powder charge to even get close to your current velocity.
 
Re: good load for .308 178 hpbt's with CFE 223?

I did some load development yesterday with some 175 grain Match Kings and with 46.9 grains of CFE 223 I got a max velocity of 2732fps. This was with a 20" barrel and 1 in 10 twist.
 
Re: good load for .308 178 hpbt's with CFE 223?

That's pretty good velocity from that load from a 20". I do appear to have chunks of brass removed from the rims from the ejector.
 
Re: good load for .308 178 hpbt's with CFE 223?

I'm still working up to max load of 47.5. As soon as I get there I'll have another update. I'm thinking I'm going to run out of barrel soon and start getting minmum gains in velocity.
 
Re: good load for .308 178 hpbt's with CFE 223?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Daze</div><div class="ubbcode-body">That's pretty good velocity from that load from a 20". I do appear to have chunks of brass removed from the rims from the ejector. </div></div>That's what I was concerned about. I think it is possible to achieve those speeds with enough pressure. Of course, that's very dangerous. How long are you loading these? Are you seating the bullet real deep in the brass?
 
Re: good load for .308 178 hpbt's with CFE 223?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Daze</div><div class="ubbcode-body">I use Lapua brass but find that I pop an occasional primer while shooting even low pressure loads. Is popping primers always a sign of high pressure? Or is it stretched primer pockets? How many times should I be able to load them. I'm probably on the 5th loading. </div></div>I'm using Lapua Palma brass which does tend to last longer because of the small primer pockets. But still, I'm at 29 times with no issues at all. Something is causing pressure and you should be very cautious until you figure out what it is.
 
Re: good load for .308 178 hpbt's with CFE 223?

Oal is 2.8 so it will fit in the mag. I have never trimmed the brass but last I checked it was still within spec.
 
Re: good load for .308 178 hpbt's with CFE 223?

This is a tuff one as a lot of things could raise the pressure and most of them I probably won't think of.
1. Are you leaving the ammo in the sun or in a hot car?
2. I let my brass get too long once and got an ejector mark. It only took a few thousandths to cause problems in my rifle.
3. Does your barrel have a build up of copper or anything in it?
4. Are you making the necks real tight?
It's hard to find alot of information on this powder since it's pretty new. It's most like Alliant 2000MR which is almost the same powder. From what I understand they made in the same place with very slight differences. I don't see anyone having these problems with either one of these powders though.
 
Re: good load for .308 178 hpbt's with CFE 223?

Nope. Not out in the sun. 47.2 is probably too hot. The Hodgkin manual had 45.1 as the Max load for the 180 gr bullet. Don't remember which bullet exactly. Bore is clean. Not sure how tight the bullets are in the brass. I'm using my Dillon dies.
 
Re: good load for .308 178 hpbt's with CFE 223?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Daze</div><div class="ubbcode-body">Nope. Not out in the sun. 47.2 is probably too hot. The Hodgkin manual had 45.1 as the Max load for the 180 gr bullet. Don't remember which bullet exactly. Bore is clean. Not sure how tight the bullets are in the brass. I'm using my Dillon dies. </div></div>The bullets being too tight in the brass could increase pressure. Maybe that's it. I just make my necks tight enough so I can't move the bullet. I've never had a Dillon. After you solve the pressure problem you should still have more speed than with most other powders.
This is a guy using that sister powder to CFE 223.(30" barrel)
http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=3242982
 
Re: good load for .308 178 hpbt's with CFE 223?

The hottest I have gone with CFE223 in a 178 Amax was 46.5 and I thought that was hot.
 
Re: good load for .308 178 hpbt's with CFE 223?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: gosu</div><div class="ubbcode-body">The hottest I have gone with CFE223 in a 178 Amax was 46.5 and I thought that was hot.
</div></div>It is hot. You're over max load. That 2000MR is very similar to CFE223, but it's not identical. I wouldn't use the same load data. It's great to get extra speed, but not if means risking injury or at the very least damaging your rifle. Do you get pressure signs at 45gr? I think you might be beating up your equipment.
 
Re: good load for .308 178 hpbt's with CFE 223?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ArmchairElite</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: gosu</div><div class="ubbcode-body">The hottest I have gone with CFE223 in a 178 Amax was 46.5 and I thought that was hot.
</div></div>It is hot. You're over max load. That 2000MR is very similar to CFE223, but it's not identical. I wouldn't use the same load data. It's great to get extra speed, but not if means risking injury or at the very least damaging your rifle. Do you get pressure signs at 45gr? I think you might be beating up your equipment. </div></div> I agree, on the 46.5 comment. But that was Hodgden's max per a conversation I had with them. I found lousy result with the hot loads.
 
Re: good load for .308 178 hpbt's with CFE 223?

I didn't use the shades on my chrony and it wax a sunny day. As long as the velocity readings are showing consistently it shouldn't be a problem, right?
 
Re: good load for .308 178 hpbt's with CFE 223?

[/quote]I'm using Lapua Palma brass which does tend to last longer because of the small primer pockets. But still, I'm at 29 times with no issues at all. Something is causing pressure and you should be very cautious until you figure out what it is [/quote]

I too have been using the Lapua Palma brass, althought the lot with the most reloadings is only 7. Great to hear and example of what they are capable of.

I use CCI 450 SR magnum primer with 45 gr of varget and a 175 SMK velocity averages about 2750 fps. I thought that was a litte slow but maybe not. It is definately the most accurate load for my rifle which has 26" barrel 1:11 twist and muzzel brake. I know load is over max but no pressure signs and quite a few of the guys in my club shot the same load but with large rifle primers.
 
Re: good load for .308 178 hpbt's with CFE 223?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ronas</div><div class="ubbcode-body">[/quote]
I too have been using the Lapua Palma brass, althought the lot with the most reloadings is only 7. Great to hear and example of what they are capable of.

I use CCI 450 SR magnum primer with 45 gr of varget and a 175 SMK velocity averages about 2750 fps. I thought that was a litte slow but maybe not. It is definately the most accurate load for my rifle which has 26" barrel 1:11 twist and muzzel brake. I know load is over max but no pressure signs and quite a few of the guys in my club shot the same load but with large rifle primers.

</div></div>I'm using 45 gr of Varget with 178 gr amax. I want to tell you a few things , but I don't want to hijack the thread. Here is a post on the Lapua Palma where it was discussed if you're interested.
http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=3218815
 
Re: good load for .308 178 hpbt's with CFE 223?

O.K. last post for the CFE 223 for me. I know ya'll are tired of hearing about this stuff, so I'm going to stop posting about it. This was my latest test load. As you can see I had one flyer. With the flyer my group was still under MOA. This is a five shot group. I'm very to say the least.
 
Re: good load for .308 178 hpbt's with CFE 223?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Denny2277</div><div class="ubbcode-body">O.K. last post for the CFE 223 for me. I know ya'll are tired of hearing about this stuff, so I'm going to stop posting about it. This was my latest test load. As you can see I had one flyer. With the flyer my group was still under MOA. This is a five shot group. I'm very to say the least.

</div></div>I am good with the CFE conversation. But I don't see anything.