I would be surprised if there were not enough interest. There might be another reason. The Deep South ELR matches are filling up 30 light gun slots within minutes of opening.
New Berger 375 bullet 410 hybrid
- Thread starter Sleepertruckguy
- Start date
Ha. Yeah I am 18 hours away from WhiteOak Creek. I’ll be making 2 stops each way to visit friends and family. It will be my first trip out west to shoot. Not sure how I’ll react to a hill.I was going to give you guys a bunch of good-natured shit about having to drive so far to shoot ELR, but then I realized that my last trip out to the desert was 6 hours each way
EDIT: And having lived in FL for 20 years, I know the mirage... I've got a video that's rendering now about the mirage on the desert trip. Insane
When are you heading up there?
I'm taking Rebecca out west in September.
And yes, I'll be bringing at least one rifle. If all I have for targets is cross canyon rocks, then we'll be shooting at rocks.
I think she'll love the whole trip.
I signed up for David Lyndsay’s ELR class. It’s the weekend of June 13.
We're doing a 7,000+ mile round trip. Starting SE of Tampa, hitting the Grand Canyon, Bryce Canyon, a visit with my oldest daughter at Hill, AFB.
From there, it'll be the Wind River range, Tetons, Jellystone, then anything else we have time for.
Probably hit the Bighorns and Badlands on the drive home.
I'm pretty sure we'll just take a couple of days to sit in the woods and enjoy some people free time.
Thanks. I’ve heard. Very excited to learn what it takes to compete under pressure.
Are you loading the 410’s ? I’m having difficulty with seating depth consistency using my AB dies. They work fine on CE400G2’s. I just ordered a bullet comparator set for bigger calibers. I’m gettin 0-.015” variations. Desired jump is .020” back.
I used my 12-year-old VIERSCO dies for mine and didn’t measure B-O on my loaded rounds.
I also did not measure B-O on individual bullets
I have the seating stem for my Warner tool company dies, but I find that I don’t use it very often because I don’t want to take the dye apart so I just use my old VIERSCO die
I also did not measure B-O on individual bullets
I have the seating stem for my Warner tool company dies, but I find that I don’t use it very often because I don’t want to take the dye apart so I just use my old VIERSCO die
It does.
It's also a good thing I really like my wife. 2-1/2 weeks together in the van could be a problem with a few couples that I know.
The 85# dog will be the interesting part. She's figured out the queen bed is really comfy...
Yeah, you definitely knocked it outta da park with your shooting cruiser. Still envious of it !
Having reservations with seating variations with my AB seating die/stem. I am experiencing a +\- ..020” window. No compacted loads. I’m using COAL as told. I just inspected the bullets and see score marks. The meplats also seem angled and a bit jagged. I’m prob over thinking this, but curious what the masses found.
I may get lucky and hitch a ride to the arena with Mike next week.
Looking forward to it, really like the range even though my elr shooting there sucks
And I agree, Mike and Rebecca did an awesome job with their vehicle!
I haven’t gotten any to try yet. Maybe this fall.
You can you the .375 insert for the Hornady shoulder bump gauge set as a bullet competitor for 375 stuff. I’ve done it that way for years.
If you’re seeing +/- .020” of overall length, that would seem a little high for me, but without seeing or measuring these bullets, it’s hard to tell. Jump is measured off the ogive, so I would just wait till I could measure that and go from there. Atips have a much more consistent oal than most other cup and core bullets.
So what COAL did you end up with at 25 back?
And how much of the bearing surface are you capturing in the neck ? I’m getting ready to load some test rounds 15 back that will have a COAL of 4.570” with approx half the neck support. Gonna check concentricity to make sure all is ok. May need to tighten neck tension.
my COAL is 4.340" and that has the shank/boat tail junction just at the neck/shoulder junction, by chance alone. and the Ogive is 0.025" from the lands. I have a carbide reamer, the exact one that DT uses which was designed around the CEB 352s, so that's why my throat is shorter that those with chambers designed around 450s or something like that.
I also shot some loaded 4.290 or 50 thou deeper, but only at range. My general intuition was that the velocity was not as consistent, so I'm going back to 4.340 or 0.025" off
I also shot some loaded 4.290 or 50 thou deeper, but only at range. My general intuition was that the velocity was not as consistent, so I'm going back to 4.340 or 0.025" off
Also, I did not clean out powder Valley. They still have them in stock for the same price I got them so go have it boys.
www.powdervalley.com
Berger Hybrid Target Bullets 375 Caliber (.375 Diameter) 410 Grain Jacketed Hollow Point
Berger Hybrid bullets are designed to achieve extreme accuracy for competitive and recreational target shooters. Berger Hybrid bullets combine a tangent ogive with a secant ogive to produce the highest possible with the least sensitivity to seating depth. This allows the reloader to take full...
www.powdervalley.com
There are endless versions of the loading process decision tree. Whether a particular process or strategy is a good idea or not depends on the other decisions you've made.
That being said, in general, positioning the back of the bearing surface ahead of the neck can be a good strategy. The back of the neck is stiffer because it's reinforced by the shoulder. The transition from the shoulder to the neck is a shit show after a few firings. This one is a 300 Lapua case that was turned after forming. It's been turned again after 3 firings using the same turning tool.
Using 0.006"+ neck clearance and positioning the rear of the bearing surface 1/4-1/3 of the way down a 1 caliber long neck will kick the need to turn down the road 10 or more firings.
If you don't neck turn, you'll likely see a benefit from moving the bullet down the neck. If you don't neck turn and have 0.004" or less of neck clearance because you don't want to "overwork" your brass, it's pretty much necessary to get consistent velocities.
I'm assuming we're single loading and not running them through a semi auto.
That being said, in general, positioning the back of the bearing surface ahead of the neck can be a good strategy. The back of the neck is stiffer because it's reinforced by the shoulder. The transition from the shoulder to the neck is a shit show after a few firings. This one is a 300 Lapua case that was turned after forming. It's been turned again after 3 firings using the same turning tool.
Using 0.006"+ neck clearance and positioning the rear of the bearing surface 1/4-1/3 of the way down a 1 caliber long neck will kick the need to turn down the road 10 or more firings.
If you don't neck turn, you'll likely see a benefit from moving the bullet down the neck. If you don't neck turn and have 0.004" or less of neck clearance because you don't want to "overwork" your brass, it's pretty much necessary to get consistent velocities.
I'm assuming we're single loading and not running them through a semi auto.
+- 0.020 on the length and you're worried about concentricity?
The variation in COA should be about the variation in bullet length. If there really is 0.040" variation in the length of those bullets, they need to be sorted to 0.005". Or trimmed. If you point them after trimming, leave a meplat that's 15-20% of the bullet diameter.
There shouldn't be a mark on the bullet from seating. Even good seating stems may need to be detailed. Blend away the transition to the contact area. Polish the contact area with fine lapping compound using a bullet in a cordless drill. Minimize seating pressure. I also use SOF2's Imperial Wax trick on the bullet and neck entrance. It lowers the seating pressure and makes inconsistencies in the neck prep more obvious. After seating, feel for jacket shavings when you remove the wax from the bullet. If there are any, upgrade your chamfer.
Thanks man. I’m probably in over my head here. Won’t be the first time. I don’t trim or point or sort. I don’t compete, but always strive for perfection. I think I’m gonna keep testing the 18 cases to see if I can achieve SX OF 5 or so and sub MOA. I had that with last batch at 100, but mile hit % was less than expected. Then I realized a mistake I made in chamber measurements(I have 2 CT’s) and bullets were like 145 back. Barrel is needing end of life and I’m really just checking these out. Thanks for your suggestions. I’ll get there.
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