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Originally Posted by ldholton
okay I just now reloaded and reshot through a chronograph 40.5 grains of H 4895 to see if I wrote in error. 2624 is what I got from this that's running a bit over a hundred feet per second faster than Hornady list that Hornady also used Hornady cases so that would drop that a grain to 39.5 which I shot the other day at 2525 so that sounds right to me now.

the more stuff I shoot and the more I experiment with it's gun seems to be shooting a bit faster than publish data would reflect across the board..
an interesting note 40.5 of IMR 4895 which one would believe would be at least close to the velocity of H 4895 there's only shooting 2550 75 ft per second slower than the H version. but also interesting it would not cycle the action...


I did a bit of shooting this afternoon and here's what I found for comparison purposes:

Remington 700 XCR CT 20" barrel 308 Winchester
LC15 brass
CCI 200 primer
Hornady 168 bthp seated to 2.8" overall length
41.5 gr. H4895
2617 fps

GB1

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Sounds like a great load. If I sub in Sierras instead Hornady's I found velocity decreased a little. I think the Hornady's have slightly less bearing surface.

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I found a similar increase with the Hornady in my 40X:

Originally Posted by mathman
I've been doing some chrono testing lately comparing the Hornady 168 bthp and the 168 Sierra Match King. The rifle is a Rem 40X with a generously throated 7.62 NATO spec chamber in its 27" barrel. In SIG brass loaded with 42 grains of recent production IMR 4064 the Hornady produced 2630 fps while the Sierra produced 2600. Nothing is free, so the Hornady is quite likely generating more pressure. Something to keep in mind if you're referencing classic M1A loads which used Sierras more often than not.

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The garand isn't as powder sensitive as the internet led us to believe.

The 14 is similar... You won't be bending an oprod due to powder... you tweak them due to lack of lubrication.
What's your source for this statement?

The convention of "no slower than IMR4064" and no heavier than a 175gr bullet has been around well before the internet has been thing. Those convention came out of the arsenals, and from military teams firing more rounds that any of us will ever see. I know of people who "poked the bear" experimenting and paid the price.

Last edited by ChrisF; 03/05/23.
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It also appears Hornady is trying to beat Sierra at their own game with the 168 HP match bullet. The Hornady's are ever so slightly longer for a bit more B.C. and run a bit faster over the screens. Accuracy is almost equal with a very slim edge to the Sierras. The Hornady tested sub 1/2 MOA for 5 shots at 100yds from my 26" heavy barrel test platform
Hornady's been chasing Sierra for a long time now. Back in the 50's, Sierra produced their 168 International...and Hornady decided they needed a 168 too (as did Speer). At least they used a slightly different secant ogive versus the Sierra's tangent ogive.

Back in the late 70's-early 80's, when Lake City was fielding a new match 7.62 round, they tested the various flavors of 168ish bullets including the 168 Hornady and the Lapua D46. In the end, they found that the 168 Sierra's shot tighter on average and the Sierra's were selected for the M852 Match rounds.

Hornady to their credit has continued to push the development envelope with newer and better designs. ie A-Max, ELD, etc.

Last edited by ChrisF; 03/05/23.
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