I just received some loading data from Barnes . And was wondering if anyone was using there 500 grain solid bullet . Can you tell me if these velocitys are doable. They claim H4895--79.0 grains 2323 FPS and IMR4320---81.0 grains 2349FPS These are there MAX loads with these powders Later Tanoose

I'm using 79 grs of the 4320 for 2250 fps and that's about all I can get in the case comfortably. I'ts enough to do nicely. I did notice the recoil went up with the solids. Good shoot'n

Make certain you pay attention to their max overall length..

what did they give you for STARTING loads?

what barrel length was given?

jeffe

Jeff , all they sent me were powder types and loads from 300-600 grain bullets.There starting loads were H4895--74.0 at 2176fps and with IMR4320 it was 76.0 at 2204fps they stated that this data was only for use with there 500 solid and there 500 XFB

I received another e-mail i guess they forgot to send page 1 it did state the following
Case-Barnes
Primer-cci-250
Barrel-26"
Parent Case .375H&H
Trim to -2.790

Tanoose,

Are those data for the new FN solid?

mrlexma no this isn't data for the new FN banded solids i beleive these pages sent to me were photo copes from the barnes #3 manual.I sent an e-mail to them earlier today to confirm this data

I was working up loads this past weekend, and the Barnes data is with a 26" barrel. I didn't have the CCI 250's, so worked up loads with my preferred Fed 215's. I was also using the 450 Banded Solid and TSX. Last load was the banded solid over 79.0 gr H4895 and the Fed 215. It's lightly compressed, and was crimped well into the fourth (from bottom) groove yielding OAL of 3.6"
My barrel is handlapped Lothar Walthar (in case that matters) velocity is 2304 with just under a 4fps std. dev. over five shots. This interpolates to only 88.6 fps slower than the Barnes data with a 26" barrel. 78.0 grains of H335 yielded 2184, simiar Std Dev and that is 84.4 fps (interpolated) below the Barnes data. Primers are beginning to flatten on the 79.0 H4895 loads, and case head just in front of the belt has expanded .0006 - .0007 over the virgin unfired brass dimension.
In summation, I'm getting pretty close to their velocity with a barrel that's only 22" long (4 " shorter).
FYI, the TSX in 450 can be seated into a groove for the same 3.6" OAL, but you'll loose over 0.130" of powder space from it's longer shank, and it is already compressed a tad with the Solid.

I'm interested in your barrel length and what you find out in your experiments, send me a PM if you get a chance. I'm thinking the 500's will simply be too long for H4895 without significant compression (in my rifle of course).

Safe Hunting

Clint

With the subject of 458 Lott what is the muzzle diameter of your rifles. Am looking to build one and trying to decide whether to go with the .985 or the 1" plus diameter barrel. Barrel length will be 24". Thanks in advance for your info!

Mine's 0.725 at the muzzle, in a Lothar Walther 22" barrel. It is NOT heavy at all. I may have a mercury reducer installed in the stock. I will be hunting hogs and deer for practice way more than Buffalo or DG, so weight for it's most common use was the issue. I can always add weight, but it's harder to take it off.

Admittedly it should be a little heavier if all you plan to shoot is factory or full power Lott loads. Standing it isn't too bad, but it is zero fun working up a load of solids and softs that prints to same point.

I'm only losing about 85fps working through the from the Barnes data and that was creates a 26" barrel.

Safe Hunting,
Clint

My Lott has a .720" muzzle dia., on a 24" barrel.(Shilen) Works fine for me. Any bigger, weight would be excessive.

Hog Killer

With a Woodleigh I have used as much as 84.0 grains of IMR4320 without pressure trouble. But that load may not be safe in your gun, especially a production gun which may have a rough bore and tight chamber.

Looking at montana rifleman, the max bore size for .70 is .416 which would mean the next size up being .985. If the barrel get's too thin does that affect being able to drill and tap sights into the barrel? Or in the case of a thinner barrel would a front barrel band be more appropriate and then you would have a quarter rib installed? Just a point of learning for my information.

DUDE>>>
my 550 is only .930 (iirc) at the muzzle, it's whatever the largest NECG front I could custom order.

assuming a 24"barrel, .800 is right at too big, a 26" should be around .720

The Shilen #5 is a tad heavy for 458 and keith's 458 lott with a #4 is just about perfect
jeffe

quote:

Originally posted by Kurick1:
Looking at montana rifleman, the max bore size for .70 is .416 which would mean the next size up being .985. If the barrel get's too thin does that affect being able to drill and tap sights into the barrel? Or in the case of a thinner barrel would a front barrel band be more appropriate and then you would have a quarter rib installed? Just a point of learning for my information.

I think I would call them before depending on that chart as gospel. If that is their position they've pretty much locked themselves out of the big bore sporter market. Jeffe's 550 barrel at .930 is Massive. My 550 Mag is about .820 at the muzzle over 26". .985 would look like a bad joke on a 458.

That tiny muzzle taper is half inch in front of the barrel band front sight (Gen III Brockman), and behind the sight band it's over .810". It's a pretty quick taper, and PLENTY fat at the chamber or area where express sights might be screwed in. I would recommend the larger tapers if you're only shooting the full power loads. The taper of a 22" barrel needed to be pretty quick to keep the balance at the magazine, and when I'm solo hunting in the swamp, it is often carried like a levergun (thumb on bolt UNDER the scope & fingers on and in front of drop box mag.)

The loads are pretty much done, and it's off to Brockman's this week for feeding work, and checkering then "Fit for Duty" for coating.

Safe Hunting,
Clint

I finally got a reply from barnes and the info above was from barnes they told me to use the solid loading data for there new banded solids as thees have replaced there regular solid bullets and they also said that the 450and 500 grain x bullets have been replaced with there triple shock bullets and i was to use the x bullet data for the triple shock. I hope this info helps .Later Tanoose