Even with a soft lead nose, I am not sure what kind of expansion to expect from a 30 cal RN bullet at the applicable impact velocities. Taking a file to the round nose to make a meplat and using a regular cast boolit from the softest alloy that will shoot good might be worth considering. For anything close to 200 gr in a 30 cal, penetration should be good at any distance where you have adequate accuracy.
Most any fast burning powder can probably be made to work.
Extensive testing was done to show this in a variety of guns. I can not get my old links to work to the parent GMDR lever gun page, but I was able to find a working page for a 170 gr in the 30-06, http://www.gmdr.com/lever/3006s170_dat.htm.
The page above does include some 700x data.
Note that the above testing frequently showed that accuracy went out the door when these kind of loads were pushed too far. Working up or down to find the most accurate load may be needed. Also note that in the tables below I picked a velocity that is probably higher than what your gun will be happy with.
Quickload does not have 700x in the database but I can run you tables with lots of fast burning powders. These tables are set up to show you how much powder it takes to get to the same velocity.
I view 700x as between Red Dot and Green Dot, but possibly closer to Red Dot. Using Red Dot data for a 700x load should be safe as long as you are not close to the maximum allowed pressure.
Note that I used a 22" barrel. This barrel length gave the best result for matching the velocities when I tried to duplicate the 170 gr test results from the GMDR web site.
Code:
Cartridge : .308 Win. (SAAMI)
Bullet : .312, 185, LEE C312-185-1R with weight adjusted to 200 gr
Cartridge O.A.L. L6: 2.600 inch = 66.04 mm
Barrel Length : 22.0 inch = 558.8 mm
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Alliant BULLSEYE 43.9 12.5 0.81 1600 100.0 36119 2809 1.601
Accurate Nitro 100 57.8 13.0 0.84 1600 100.0 41820 2718 1.545
Alliant RED DOT 62.9 13.5 0.87 1600 100.0 43446 2683 1.528
Shooters World Clean Shot 44.7 13.6 0.88 1600 100.0 41775 2641 1.545
Accurate No.2 48.2 13.8 0.89 1600 100.0 37893 2692 1.586
Alliant GREEN DOT 58.4 14.0 0.91 1600 100.0 42403 2679 1.541
Hodgdon Clays 68.5 14.1 0.91 1600 100.0 46851 2622 1.494
Hodgdon TiteGroup 42.1 14.8 0.96 1600 100.0 44287 2634 1.522
Hodgdon HP38 41.3 14.9 0.97 1600 100.0 41897 2658 1.544
Ramshot Zip 41.1 14.9 0.97 1600 100.0 41467 2667 1.548
Winchester 231 45.8 14.9 0.97 1600 100.0 41467 2667 1.548
Code:
Cartridge : .30-06 Spring. (SAAMI)
Bullet : .312, 185, LEE C312-185-1R weight set to 200 gr
Cartridge O.A.L. L6: 3.000 inch = 76.20 mm
Barrel Length : 22.0 inch = 558.8 mm
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Alliant BULLSEYE 38.8 13.6 0.88 1600 100.0 32065 3155 1.634
Accurate Nitro 100 51.2 14.1 0.92 1600 100.0 36617 3056 1.575
Alliant RED DOT 55.6 14.7 0.95 1600 100.0 37964 3019 1.555
Shooters World Clean Shot 39.7 14.8 0.96 1600 100.0 36400 2985 1.579
Accurate No.2 42.8 15.0 0.97 1600 100.0 33275 3042 1.625
Alliant GREEN DOT 51.6 15.2 0.99 1600 100.0 37127 3017 1.571
Hodgdon Clays 60.5 15.3 0.99 1600 100.0 40618 2956 1.516
Hodgdon TiteGroup 37.2 16.1 1.04 1600 100.0 38596 2971 1.548
Hodgdon HP38 36.5 16.2 1.05 1600 100.0 36691 2999 1.573
Ramshot Zip 36.4 16.2 1.05 1600 100.0 36349 3007 1.578
Winchester 231 40.5 16.2 1.05 1600 100.0 36349 3007 1.578