Any explanation behind this? Or is it just what you've observed?
338-06 Rifle build. Ideas please
- Thread starter Toomanyguns
- Start date
Any explanation behind this? Or is it just what you've observed?
If you want "big" speed, try a .338 Lapua.....90g VVN560 with a 250g
Barnes X bullet @ 3000FPS and 5000ft/lbs at the muzzle.
Got one of those already. She does 3050 with 300 gr. SMK's I use 112 grains of US869 in mine.
gunrunner8
CGN Ultra frequent flyer
- Location
- Kamloops, B.C.
Everything else being equal the slower the rifling twist the less friction in the barrel eqals more speed for the bullet, it might not amount to much maybe 50FPS or so but neverless the difference is still there. Shorter barrel, 22" instead 24" when having the same contour is litle bit stiffer so it will be touch more accurate IMHO.
And it also duplicates the ballistics of the 333 OKH that the 338-06 is based on. Does anyone load 275, 285, or 300 gr for nostalgia?
I was trying to figure out where the sense of deja vu was coming from. A couple minutes with search and I figured it out:
http://www.canadiangunnutz.com/forum/showthread.php?t=475207
Starting at your post, #37.
To recap, I'm still pretty sure that less than 1% of the energy goes into rotational velocity. And because energy has a square relationship with velocity, less than 0.5% of forward velocity is bled off to produce the rotational velocity. That's a total forward velocity loss of around 10 or 15 FPS required to redirect the energy into rotational velocity in a 12 inch twist barrel. Without re-running all the numbers for a 10 inch twist, I bet the difference is only 2 or 3 FPS.
As before, these suppositions are based entirely on basic physics. If someone has better physics or empirical data to show otherwise I'd love to hear about it.
As far as barrel length vs accuracy goes, the internet has a lot to say about that, and it's far from conclusive.
http://www.accuratereloading.com/223sb.html is a neat experiment with a good bit of data. No obvious relationship between length and accuracy there, and it's a lot more than a 2 inch difference in barrel length.
- Location
- Dah Soo,ON
Ladies and gent's...I give you...the new Mackillan
Lot of brass work with the Gibbs line. Good cartridges though, I have a couple now, and have had quite a few over the years. They (and the Hawk line) get about maximum case volume out of the -06 class of cases. - dan
I have tried the 210 TTSX out of my 338 WinMag. Had them doing darn near 3100 with a compressed load. Awesome impact!
As stated by others, the 210 TTSX would be an wonderful bullet choice for the 338-06.
I will install a Jennings muzzle brake on this new rifle. Excellent product.
As stated by others, the 210 TTSX would be an wonderful bullet choice for the 338-06.
I will install a Jennings muzzle brake on this new rifle. Excellent product.
I have a Weatherby Mark V Ultralight in 338-06 with a Timney trigger. I've only shot it once and 200 gr Accubonds went 2700 with 62 grs of H4350...63 is listed as max. Best groups were 15/16" at 100 meters and 1-15/16" at 200 meters,..not bad for a stock rifle with the first load tried. According to listed data you can get more velocity from Rel15 or IMR4064. I was in P&D yesterday and they didn't have any IMR4064..so I'll try some Rel15 next.
I don't how long the throat would be on the average reamer but this factory chamber has a long throat. When the 200 gr Accubond is on the lands it's at 3.592 OAL....I seated to 3.400 to fit the mag box with about .025 clearance. This puts the base of the bullet right at the bottom of the neck. It seems to shoot OK like this though. In a Rem 700 you could seat longer than this.
I think you'll like the 338-06. It's a bit more than the '06 and a bit different.This one weighs 7lbs even with a 3-9X Leupy in Leupy rings & bases...recoil is a non-issue.
I don't how long the throat would be on the average reamer but this factory chamber has a long throat. When the 200 gr Accubond is on the lands it's at 3.592 OAL....I seated to 3.400 to fit the mag box with about .025 clearance. This puts the base of the bullet right at the bottom of the neck. It seems to shoot OK like this though. In a Rem 700 you could seat longer than this.
I think you'll like the 338-06. It's a bit more than the '06 and a bit different.This one weighs 7lbs even with a 3-9X Leupy in Leupy rings & bases...recoil is a non-issue.
Nice! Have you tried the Swift A-Frame 275 gr?
No, they have not been readily available locally - not the the Woodleighs have been sitting in every gun shop's shelf. It is something I want to try too, and will probably give both a workout before next season. I will post up the results as I haven't been able to find too much on the intraweb - most folks seem happy with either the 250gr Partition or some variation of the Barnes TSX.
Well first off, a big thanks to all that posted here. Thanks also to those that pm'ed me.
After much deliberation I have decided to cancel this build. For my present situation it would be a redundant cartridge and likely to be less than thrilling or even a disappointment. (currently shoot 338 Win Mag and 30-06). I also have decided, (based upon accuracy, weight, and delivery time), that there is much better value to be had by purchasing a factory offering in a common cartridge.
After much deliberation I have decided to cancel this build. For my present situation it would be a redundant cartridge and likely to be less than thrilling or even a disappointment. (currently shoot 338 Win Mag and 30-06). I also have decided, (based upon accuracy, weight, and delivery time), that there is much better value to be had by purchasing a factory offering in a common cartridge.
Where the hell is your sense of adventure. That decision may result in you having your gun nut membership revoked.
This coming from a guy who owned a 25 WSSM, 6.5-06, 260 rem and 280 Rem, and hunted with all of them this fall, but killed his whitetail with a 308.
This coming from a guy who owned a 25 WSSM, 6.5-06, 260 rem and 280 Rem, and hunted with all of them this fall, but killed his whitetail with a 308.
Apparently I am perfectly capable of having my membership revoked without any difficulties.
It is still sitting in a perfectly functional rifle that is bruised, battered, worn, with a cracked stock. Shoots like a laser.
