7mm-08. Reload data IMR4350
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hometownhero
CGN Ultra frequent flyer
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- Toon Town, Sk
I put 48.7gr of h4350 under 139gr sst, interlock, and gmx. Compressed yes very. Shoots awesome though. Still under hodgdon max and 2900 fps.
Also hodgdon max for imr and hornady 139gr is 48gr of powder min is 45.5gr
Also hodgdon max for imr and hornady 139gr is 48gr of powder min is 45.5gr
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I load with Varget in both my 7.08 and 243.
I can get similar velocity with 42 grains of Varget compared to 46 grains of 4350.
So not at max case volume and get 11 rounds with Varget or 10 rounds with 4350 throwing the same weight of powder. That adds up to quite a number of extra rounds from the same volume over the long haul...
I can get similar velocity with 42 grains of Varget compared to 46 grains of 4350.
So not at max case volume and get 11 rounds with Varget or 10 rounds with 4350 throwing the same weight of powder. That adds up to quite a number of extra rounds from the same volume over the long haul...
hometownhero
CGN Ultra frequent flyer
- Location
- Toon Town, Sk
What is the case over all length? I haven't ever loaded that little amount of powder so no idea if it is compressed. Nothing wrong with compressing powder. I was running 28.5gr of varget in a 223 and still stuck a bullet in there.
Try a drop tube to get the powder to settle more and it should be crunching.
What brand of brass are you using? There can be significant differences in case capacity, Winchester V. Remington for example.
4350 is to bulky for the 7-08.
Varget, as mentioned is OK.
IMHO if you have it or can get it, go to a ball powder such as H414/W760 or W748 with magnum primers. I can tell you from experience that these seem to be optimal powders in MOST rifle/case combinations. I am sure there are more than a few that disagree but that's the fun part. My go to load for the 140 grain range of bullets is
Now I use a powder not available any longer. H414SL10. Great bulk powder that was sold by Higginson's
I have also experimented with REL 19 which was very accurate. 52.0 grains over BR-2 CCI primers. This is also a compressed load which isn't what you're looking for.
My next load which in my 7-08s is interchangeable and accurate is 44 grains of W748 over CCI 250 magnum primers. It gives me an honest and verified by magnetospeed velocity of 2900fps out of my 22in bbl. with a 1-9.5 twist rate. No pressure signs such as heavy bolt lift or ejection problems or excessive stretching of the case.
H414/W760 using 48.0 grains of each over CCI 250 magnum primers produces about 100 fps less velocities in my rifle with very good accuracy and no signs of pressure at all. Good all around load for this bullet weight and maybe a bit easier on the action although most recently manufactured actions say 50 years old or less are more than strong enough for much stouter loads.
A disclaimer, these loads are SAFE in MY rifles. Start 5% lower powder weight and work up from there.
Varget, as mentioned is OK.
IMHO if you have it or can get it, go to a ball powder such as H414/W760 or W748 with magnum primers. I can tell you from experience that these seem to be optimal powders in MOST rifle/case combinations. I am sure there are more than a few that disagree but that's the fun part. My go to load for the 140 grain range of bullets is
Now I use a powder not available any longer. H414SL10. Great bulk powder that was sold by Higginson's
I have also experimented with REL 19 which was very accurate. 52.0 grains over BR-2 CCI primers. This is also a compressed load which isn't what you're looking for.
My next load which in my 7-08s is interchangeable and accurate is 44 grains of W748 over CCI 250 magnum primers. It gives me an honest and verified by magnetospeed velocity of 2900fps out of my 22in bbl. with a 1-9.5 twist rate. No pressure signs such as heavy bolt lift or ejection problems or excessive stretching of the case.
H414/W760 using 48.0 grains of each over CCI 250 magnum primers produces about 100 fps less velocities in my rifle with very good accuracy and no signs of pressure at all. Good all around load for this bullet weight and maybe a bit easier on the action although most recently manufactured actions say 50 years old or less are more than strong enough for much stouter loads.
A disclaimer, these loads are SAFE in MY rifles. Start 5% lower powder weight and work up from there.
hometownhero
CGN Ultra frequent flyer
- Location
- Toon Town, Sk
Same brass as I use.
It is bulky but I somehow managed to fit 50gr of h4350 in the case and a bullet on top seated to 2.822" Base to tip.
I had tried varget in my 2 7mm-08's and both of them didn't shoot close to good with any combination of varget.
Thanks for all the help. I have finalized my decision to go with H414. I was almost gonna go with target. I will let you know how I make out. Any more info us appreciated.
Remember I am building load for my sister and I need to keep recoil as low as possible. I am hearing accuracy is coming with speed.
Remember I am building load for my sister and I need to keep recoil as low as possible. I am hearing accuracy is coming with speed.
coleman1495
CGN Ultra frequent flyer
- Location
- Whitecourt
I did 46.1gr IMR 4350 under a 139gr SST. That's roughly as high as I could go as i was getting flattened primers.
I eventually abandoned the IMR 4350 and started using Varget as 42gr yielded ~ 150fps faster and without flat primers. Also produced a quieter report.
I eventually abandoned the IMR 4350 and started using Varget as 42gr yielded ~ 150fps faster and without flat primers. Also produced a quieter report.
You heard it right! Accuracy loads and speed go hand in hand, like sour dough pancakes and maple syrup. Match ammunition, including that loaded for the big matches that used to be held between branches of the military, or for a match between the Texas Rangers and the border guard, was always loaded "hotter" than standard loadings.
And in the big matches there was no such thing as getting ammunition made, or tuned, for individual rifles. The well tuned and bedded military rifles shot the hot match ammunition just fine.
Bruce
That's why I only said Varget was OK.
Though many will disagree with this, IMHO, any load that has to be excessively compressed is not a good load and indicative of using the wrong powder for the job. That doesn't mean the loads won't be accurate but excessive powder compression can and in many cases does cause all sorts of other issues such as the bullet being slowly forced ahead over time. I have seen it happen to people on more than one occasion when they couldn't chamber a round on a hunt because the compression overcame the neck tension and pushed the bullet ahead so far it stopped on the lead before the case was far enough ahead for the camming action of the bolt could assist with closing. I've also seen swelled case bodies which made feeding into tight chambers difficult.
It's your stuff and you asked so we gave you our opinions.
IMHO, you're using the wrong powder for the job.
NO, this is what sometimes happens and has a lot to do with bullet shape, barrel length, harmonics. Flat base bullets will act differently from boat tail bullets and then there are monolithics.
Gerald, the ideal load is one that fills the case to the bottom of the seated bullet, and gives the velocity the cartridge was designed for. If two powders will achieve this, the fastest burning one is to be preferred. For example, if 4320 and 4350 would each give the proper velocity, the best to use would be IMR4320.
Unless things get complicated, like when the 308 military cartridge hit the sporting rifle class, the loading factories couldn't find a canister powder that would duplicate the military load, for use by the reloading guys.
Unless things get complicated, like when the 308 military cartridge hit the sporting rifle class, the loading factories couldn't find a canister powder that would duplicate the military load, for use by the reloading guys.
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I have found H414 or WW760 to be the BEST all around powder in 7-08 Rems jmo RJ
- Location
- Prince Albert, Sk
Before you go trying new combinations, just for poops and giggles, tap your cases a few times before going into the press and observe how the powder settles.
