INSPIRING! 
What did you reload today?
I know that Match 10 and I aren’t the only reloaders here. We reload on most Saturdays.
Today was a low volume day for us. We loaded 40 rounds of 30-40 Krag for him to try in a recently acquired rifle. They are Hornady 150gr soft points. 20 at over 35gr of H335 and 20 are over 36 of H335.
We also loaded 100 .357 Magnum defensive rounds that are 125gr Hornady XTP over 9.5gr of Power Pistol, and 150 .357 soft target rounds that are 158gr Berry’s flat point over 5.9gr of W244.
What did you reload today?
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Today was a low volume day for us. We loaded 40 rounds of 30-40 Krag for him to try in a recently acquired rifle. They are Hornady 150gr soft points. 20 at over 35gr of H335 and 20 are over 36 of H335.
We also loaded 100 .357 Magnum defensive rounds that are 125gr Hornady XTP over 9.5gr of Power Pistol, and 150 .357 soft target rounds that are 158gr Berry’s flat point over 5.9gr of W244.
What did you reload today?
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I do not know how many reading here know what a feat you accomplished.
3 shot group at 100, 5 shot group at 100 debate
This is 10 shots at 600, and 5.95 inches. Impressive.
Was the .004 jump the best for accuracy? Have you tried a larger figure, like .010 or more? Do you intend to keep increasing overall length as the lands inevitably erode?
precisionrifleblog.com
I bet a .308 wears even faster.
A lot of top competitors in PRS load their rounds to the overall length that puts them in the middle of a range of erosion they estimate will occur from the start to the end of the match. Complicated stuff. Some of them are finding that the rounds are more accurate in some rifles at a much larger figure, like .020 off the lands. So they take their measurements, figure out how many rounds they will be shooting at the next match (they have already been tracking wear and erosion) and then set the overall bullet length to be .020 (or whatever was most accurate) back at about the halfway point in the match, so they will be as close to either side of that most accurate overall length for the entire match. I guess paying attention to details like that is one reason they are at the top.
My .308 Remington VS shot most accurately with the bullet extended to the point that it there was some resistance closing the bolt and the neck only (rest of the previously fired case untouched). But these PRS guys are not doing it that way these days. There is some really interesting reading out there on it, if you are interested. I haven't tried any of this - just read online about others doing it.
3 shot group at 100, 5 shot group at 100 debate
This is 10 shots at 600, and 5.95 inches. Impressive.
Was the .004 jump the best for accuracy? Have you tried a larger figure, like .010 or more? Do you intend to keep increasing overall length as the lands inevitably erode?
That means the lands on my 6mm Creedmoor eroded 0.077” over 1300 rounds, which is an average of 0.0059” every 100 rounds(i.e. 0.077 ÷ 1300 × 100).
How Fast Does A Barrel Erode?
A match-grade barrel is a big investment for many shooters, so how much life you can expect from it...
precisionrifleblog.com
I bet a .308 wears even faster.
A lot of top competitors in PRS load their rounds to the overall length that puts them in the middle of a range of erosion they estimate will occur from the start to the end of the match. Complicated stuff. Some of them are finding that the rounds are more accurate in some rifles at a much larger figure, like .020 off the lands. So they take their measurements, figure out how many rounds they will be shooting at the next match (they have already been tracking wear and erosion) and then set the overall bullet length to be .020 (or whatever was most accurate) back at about the halfway point in the match, so they will be as close to either side of that most accurate overall length for the entire match. I guess paying attention to details like that is one reason they are at the top.
My .308 Remington VS shot most accurately with the bullet extended to the point that it there was some resistance closing the bolt and the neck only (rest of the previously fired case untouched). But these PRS guys are not doing it that way these days. There is some really interesting reading out there on it, if you are interested. I haven't tried any of this - just read online about others doing it.
So even though a tight group might be found at some other seating depth, 150 rounds in the shooter might find himself with a dramatic shift up or down, which is enough to start missing.
This is a rough or five parts series, but here is part 1
precisionrifleblog.com
This is a rough or five parts series, but here is part 1
Bullet Jump: Is Less Always Better?
About 2 years ago, Mark Gordon shared some preliminary research he’d conducted with the Applied Bal...
precisionrifleblog.com
308 throat erosion: 0.034 after 1000 rds typical?
I just notice that I have a throat erosion of 0.034 since last year when I purchased my 308 Savage 10FP and after putting around 1000 rounds. The average OAL of a bullet touching the rifling went from 2.801 to 2.835 (with 175G SMK). Measurement method: Load a round with an OAL of around 2.85...
www.snipershide.com
I was listening to the Everyday Sniper podcast, and he was talking about barrels and mentioned he used to get 10-12,000 rounds out of his .308 rifles
1 - 20 of 354 Posts
