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Jtarm
09-11-2013, 11:02 AM
I'm looking for design recommendations to use in the C.E. Harris 16 grains 2400/160-180 grain gas-checked bullet. The load will hopefully be used in 200-yard SR matches.

Ive never cast rifle bullets and I'm not necessarily looking for specific mold recommendations, just what designs have delivered best accuracy in similar applications, e.g. general profile, # & size of lube grooves/driving bands, bore-ride nose, etc.

Thanks!

Gunor
09-11-2013, 11:23 AM
Lee 155 or 160 - Similiar design (or designed by Mr. Harris) - cheaper mold to try.

And all the other cast boolit factors to fit your bore......

Geoff in Oregon

Outpost75
09-11-2013, 11:30 AM
The Heavy Metal .312-160-5 for which there is an active group buy going, would work well in this application.

There may be a few left.

Wayne S
09-11-2013, 11:32 AM
not to be short, but just how much time have YOU devoted to your request ?? Bore ID, .308, .310 ?? Your throat OD,??? , ect.ect.

Jtarm
09-11-2013, 11:54 AM
Not that it's pertinent to the question of a general mold design, but the bore slugs .311.

texassako
09-11-2013, 11:57 AM
I don't know which rifle you are using, but the Lyman 311334 and TAC1 lube w/ 11gr of Unique put 4 rounds in .37" at 50 yards with my M28-76. It has a .308" bore but the throat needed the .314" to fill it up, and thanks to everyone on here that helped me with that. I have not had time to take it for longer range tests though; so it might not be the best for 200yds. Top left in the target using a 4x Kollmorgen scope and not the peep:

81532

bruce drake
09-11-2013, 12:24 PM
The .312 Lee 155gr design is an excellent choice for most 91/30s. If your rifle is older and needs a bit bigger bullet to fit the bore, than I would suggest the 314299 303 Caliber (314 Diameter) 200 Grain Round Nose Gas Check design by Lyman. I ended up buying both because my enfields prefer a .313 sized bullet.

Bruce

Outpost75
09-11-2013, 12:40 PM
As important as knowing bore and groove diameter is knowing the throat diameter and taper of the forcing cone entrance.

My Finn M28/30 and M39 have .313 diameter ball seats and both shoot best with a .313 bullet even though the groove diameter of the Sako M28/30 Civil Guards rifle is .308" and the later Tikka M39 is .311"

Wayne S
09-11-2013, 02:05 PM
Not that it's pertinent to the question of a general mold design, but the bore slugs .311. OH, what if your mold drops bullets with .310 DB & a .299 nose ???
There are two general designs; the semi pointed, like the 311299 and the small flat point like the 41141/
Making a SWAG I'd say the throat dia. is at least as big as your bore. At 200 yds the less than 170 gn. bullets are going to effected a lot by wind.

Jtarm
09-11-2013, 04:54 PM
OH, what if your mold drops bullets with .310 DB & a .299 nose ??d.

I appreciate the advice as to weight, but did some of you guys read the entire question? I did NOT ask what mold to buy, what diameter, alloy, gas check or not. I can figure that out on my own. I am ONLY asking for design suggestions for a target bullet, nose profile, lots or few lube grooves, ogive length. I've cast long enough to know throat diameter is the critical dimension and have ordered Cerrosafe to take a cast.

The rifle is a 91/30 7.62x54r.

Hamish
09-11-2013, 05:36 PM
I think you would be well served to read this:

http://www.lasc.us/FryxellCB30-40Krag.htm

madsenshooter
09-11-2013, 07:17 PM
Appropriate reading as the Krag and 7.62x54 have similar case capacities. Whether or not some of the bullets that Glen recommends would work depends on your bore measurement. The nose of some of them might cast a little small for your rifle.

chboats
09-12-2013, 11:10 AM
Jtarm - It is difficult to answer the question because it is VERY general. What works for one rifle may not work for another. If the throat is not worn a bore riding boolit like the 311/314299 has won more matches than any other boolit. If the throat is washed out it may require a tapered design to fit the throat. Some of the more competitive cast bullet shooters use bump dies to shape the nose and body of the boolit to fit the taper of the throat. The very pointed boolits like the 311365 don't seem to work very well because the nose will slump if pushed very hard.

Carl

WILCO
09-13-2013, 01:01 PM
Jtarm - It is difficult to answer the question because it is VERY general.

With a count of 53 posts and argumentive tone, I'm marking this down as "Troll" activity and moving on.

Maven
09-14-2013, 09:41 AM
Years ago "Aladdin" (Jay Downs) and 45 2.1 came up with a .30cal. spire point, gas checked bullet design based on a Speer (?) or Sierra (?) match bullet. Lee Precision produced the single cav. mold. Whether it cast large enough to fit a 91/30 or other Mosin Nagant, I can't say. However, it was quite accurate in my .30-06. With custom design features available from several mold makers, e.g., Accurate, that may be a place to start.

Maven
09-17-2013, 06:20 PM
There's more information about the high ballistic coefficient CB design I referred to in post #15 here: http://castboolits.gunloads.com/showthread.php?186895-200-grain-HBC-Lee-Custom-30-caliber-mold

Buckshot
09-19-2013, 03:20 AM
..............For my money the BEST boolit made for most ANY Russian made Mosin Nagant was the Lee Group Buy designed and run by Nu-Judge. Failing that (and the Nu-Judge has been out of print for years) is the Lyman 314299.

..............Buckshot

birddog1148
09-19-2013, 05:52 AM
Just got the Lyman mold, going to try that against the Lee mold.

bruce drake
09-19-2013, 12:37 PM
Bud, I tried to point out two known bullet molds that have been successful in getting Mosin-Nagants to shoot well. Now its up to you.

Bruce

frnkeore
09-19-2013, 03:50 PM
With a count of 53 posts and argumentive tone, I'm marking this down as "Troll" activity and moving on.

I think that your being unfair. I understand his question, very well and as to post count, it's a totally uncalled for statement. Did you ever have a post count of 53? What your calling a argumenitive tone is him only try to get the design part of his question addressed. i.e. Number and with of bands, bore riding lenght and diameter, nose shape.

Regarding his question, I suggest he go to the "horses mouth",

http://www.castbulletassoc.org/

and look under match results for both loads and bullet designs. The 311/314299 seems to win it's share of matches and would be a reasonably safe one to start with.

Frank

45 2.1
09-19-2013, 04:51 PM
^^^^ What Frank said^^^^

BTW WILCO, just how did you come up with a 53 post count? If you actually look under his handle, it reads "Posts 441".