300 win mag load question

I disagree. Your trying to find what the rifle takes. Take the Indian out of.the equation, dealing with the arrow.

Going from H1000 to 4831sc seems a big jump. Check out the burn rate chart, if for nothing else.....a plan c.

I would agree with that statement, it remove a bad shooter from the problem. It could be a fuzy barrel, not breaking in correctly (need cleaning every few rounds) or a bullet the rifle do not like.

Also, I would try to find the maximum seating depth and work on it..

How is it with Match factory ammo?
 
can someone please explain why ditching the led sled is a good idea? Trying to understand how adding more human interference would help me find a more accurate load.
 
I believe the recoil moves the LS system inconsistently which produces groups that just shooting off a bag would put to shame. Seen a few wood stock rifles crack at the pistol grip too when contained in a LS, even in a relatively light recoil cartridge (270 Win)

I remain unconvinced that something like the Lead Sled has any real value for building up a load. IMO, any shooter, with a bit of practice, should be able to hold -.5 MOA at 100 yards with a good front rest and rear bag. Bench rest shooters notwithstanding (they're a separate breed) if your load can hold that accuracy you don't need to tie the gun down.
 
My very limited experience with a LS has me convinced I don't want one. Maybe there is such a thing as a good one, and I suspect some of my guns can actually shoot better than I do, but I get all the accuracy I need for what I do off a set of sand filled leather bags. I admit I have seen, however, some people try to test loads or shoot groups who would likely benefit from a lead sled to hold the gun.
 
Ok guys heres an update:

Loaded a bunch of 180gr SST's with H4831sc and worked up from the minimum load to the max. and a bunch of 200gr ELDX's with H1000. Best load was 67.5 grains of H4831sc with 180gr SST's group was 1" at 100yds. ELDX's were not great pretty much the same results i was getting before. My gun just doesn't like H1000 powder, i guess. Pretty happy with the new powder. thanks to all who offered their advice. 1" group for a BLR is a fantastic result. thanks again,

Pescador
 
A 1" group is good. I was playing with my 358 BLR last week developing an accurate load for it. Funky factory trigger. I should have stopped after the 3rd shot.

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.358 Winchester BLR with Leupold FX-II Scout 2.5x28mm
 
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A 1" group is good. I was playing with my 358 BLR last week developing an accurate load for it. Funky factory trigger. I should have stopped after the 3rd shot.

28006248428_1c06551715_z.jpg


35335923611_b5946d7fdb_b.jpg

.358 Winchester BLR with Leupold FX-II Scout 2.5x28mm

Trigger job on it is easier than most people think. It made mine a lot better. Used to be gritty and close to 8lb. Creep is still there but it let's go at abou 4.5lbsand breaks a lot cleaner
 
My BLR trigger seems to have smoothed out with use. Now it's like a 2 stage but with an overly heavy pull, the take-up is close to predictable before it breaks. Once sighted in off the bench the real test is how the rifle shoots off hand because that's how it's generally done under field conditions.

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The lead sleds I have seen were not solid. A non-braked hunting rifle in a magnum chambering can be painful to shoot off the bench, but my experience has been if you hold it tightly on a front rest and rear bag groups will be good. The only modern bolt rifle I haven’t been able to get down to 1 MOA was a Mossberg 243. Even Dad’s stock ‘70’s BLR shot 1 1/2”@100M with irons.
 
Accuracy Load: IMR-4831/ 71.6grs. 3000fps/ 3598ft. lbs.
Hunting Load: IMR-7828/ 76.8grs. 3100fps/ 3841ft. lbs.

From the Sierra Infinity Program

Nosler says H1000 but 2.5 inch groups at 100 yards is not your answer.
 
The lead sleds I have seen were not solid. A non-braked hunting rifle in a magnum chambering can be painful to shoot off the bench, but my experience has been if you hold it tightly on a front rest and rear bag groups will be good. The only modern bolt rifle I haven’t been able to get down to 1 MOA was a Mossberg 243. Even Dad’s stock ‘70’s BLR shot 1 1/2”@100M with irons.

Believe it or not the BLR in 300 WM is pretty comfortable to shoot. gun is really heavy actually which makes the recoil manageable. i shoot it off a front rest in the prone position fairly often. last year i took a bear with it at 30yds and i cant say i felt any recoil at all, adrenaline was going and i was too focused on making a good shot.
 
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