30BR, 4198, 112's and Other Stuff

The only difference...

Jeffreytooker said:
There have been many loads stated for 30 BR on this thread. However little mention of primers. With H 4198 are standard primers the ones to use or are magnum primers required?

Jeffrey Tooker
Click to expand...

between a wolf srm primer and a regular one is the thickness of the cup according to them. Not sure about other makes.
 
30 BR Fireform Loads

I have been reading the archives and Ratigan on fireforming. The bulk of the info is on 6 BR. However the general consensus seems to be lubed cases loaded at 2/3 to 3/4 normal powder charge. So would using 2/3 to 3/4 of normal 30 BR charges be reasonable?

Jeffrey Tooker
 
Jeffrey,
I used 33.0gr of H4198 to fireform my brass with a light lube, and the bullets seated firmly in the lands. I have also gone to 33.5gr and have seen no adverse effects. Several of the rounds chamber rather firmly (if you go with the expandiron route from 6-30cal) on that first firing, but if you can get the bolt closed, the brass will fall out easily once fired. I had a few rare rounds that just had ridiculous runout (20 thousandths), and would not chamber. I ran them through the full length die a few times, and tried to bump the shoulder down a bit until they would chamber. Worked out just fine.
I have used Hornady 110soft point bullets as nice, cheap, forming rounds. I started out using 110amax's, but considering I knew I would end up shooting bergers or Bibs it just didn't make sense to waste good bullets.
Good luck!
Mike
 
Savet06

Good luck!
Mike[/QUOTE]

Mike:

Check your PM's.

Jeffrey
 
H-4198 Lot Number

Gentlemen:

I received my H-4198 order today. I looked for the lot number. The only thing that is not the regular printed lable is an orange sticker, with a number on it. The number is 80316094701. Is this the lot number? If so is there any info on this lot number?

Jeffrey Tooker
 
Barrel Length Quandry

My 30 BR barrel (Savage) arrived from Shillen today. It is large shank 28" long and 1" at the muzzle. Our matches are un sanctioned score with no weight limits. My previous barrel was 21" and Quick load calculated a 118 gr bullet with 34.5 gr H-4198 has a velocity of 2945 fps. The load shot well considering the rifle it was in. With a 28" barrel the calc says 3085 fps. If others have had this situation before, does one reduce load to get back to the ~2950 node or try to find a new node with a 28" barrel?

Jeffrey Tooker
 
Jeffrey, my suggestion would be to start down low with your new barrel. 32.0 is a good starting place. I doubt you'll find 140 fps. gain between a 21" and 28" barrel with a 30BR and 4198....maybe half of that.

These 30BR's are pretty easy to tune: set the seating stem .025 shorther than 'just touching' the lands (.025 'jam'), use a BR quality flat based bullet, a neck bushing .004 smaller than the loaded round meaures, and go up in .5 gr. increments with 4198 to tune the vertical out @ 100 yds.

Once you get it shooting well @ 100, go right to 200 and do your final load tuning there starting with powder charge changes in .5 gr. increments.

All of this assumes you're using a gun with a proven record of performance, a known-to-be-good scope......and most importantly of all ......that you're shooting over windflags.

Avoid trying to do your tuning when the conditions at your range are giving vertical shot displacement. Trying to tune out a bulet of vertical when the winds at the range is worth two bullets of vertical will be a waste of time, money and components. :)

Just my method...... -Al
 
Al: My Equipment

Al Nyhus said:
Jeffrey, my suggestion would be to start down low with your new barrel. 32.0 is a good starting place. I doubt you'll find 140 fps. gain between a 21" and 28" barrel with a 30BR and 4198....maybe half of that.

These 30BR's are pretty easy to tune: set the seating stem .025 shorther than 'just touching' the lands (.025 'jam'), use a BR quality flat based bullet, a neck bushing .004 smaller than the loaded round meaures, and go up in .5 gr. increments with 4198 to tune the vertical out @ 100 yds.

Once you get it shooting well @ 100, go right to 200 and do your final load tuning there starting with powder charge changes in .5 gr. increments.

All of this assumes you're using a gun with a proven record of performance, a known-to-be-good scope......and most importantly of all ......that you're shooting over windflags.

Avoid trying to do your tuning when the conditions at your range are giving vertical shot displacement. Trying to tune out a bulet of vertical when the winds at the range is worth two bullets of vertical will be a waste of time, money and components. :) Just my method...... -Al
Click to expand...

My jam is presently .017". I will change. My neck bushing is .324". That is .004" under the loaded rounds neck. The brass is Lapua. It is fire formed in a chamber cut with a 30 Robinett .330 neck reamer by PTG, the same reamer used by Shillen. The bullets are BIB 118 gr 7 ogive. The scope is a new T-36 Weaver. The new LRPV action has been gone over by SSS and their best trigger installed. The stock is the laminated SSS stock and it is pillar bedded. I will be shooting over wind flags. My charges are weighed on a balance beam scale. The powder is H-4198. The dies are Wilson. Everything is new and it will be going together in the next couple of weeks. Nothing is proven but it should be a good starting place. The range has 2 to 3 calm hours starting at sun up. By the time the wind comes it is getting too hot. Do you have a suggested barrel break in procedure? I take it that the groups are five shot.

Thank you.

Jeffrey Tooker
 
Jeffrey: Sounds like you've got a solid setup with great components. :)

There no magic in the .008 between your .017 'jam' and my suggested .025 'jam'. ;) I've just found .025-.030 to be a good fit for all ogives and throat angles. Just a good, solid engagement is what I look for.

Doing initial load work, I shoot 3 shot groups. If three go into one hole...I load two more and send 'em down there. At 200, groups are all five shots. When I find a nice working load at 200, I'll shoot three more five shot groups with it. If they still look good, I'll fire two more five shot groups to make sure it holds together.

Other ways may certainly work, as well. -Al
 
I have posted most of what i am going to say in another topic, but this was such an interesting read i felt i had to ask some questions. I am in the process of my first 30BR. I have the Robinet reamer from Dave kiff. I found a Bartlein 17twist 4 groove barrel. I am going to be using a stiller predator or one of the new P-1000 actions. Not sure yet? Anyway I havent read much about the Bartlein barrels for the 30BR. I would assume that the bartlein will be an excellent barrel for the 30br but how come no one is shooting one? Is there anything i need to know? I ordered some BIB 112's but as you know it will be several weeks before i get them. I will probably buy a box of Berger 115's to get started with. Is anyone here shooting the Berger bullets in comp? Thanks guys. Lee
 
Several shooters are using Bartleins. They are very good. Most are shooting custom bullets, but the Berger 115's are good and are capable of winning matches.---Mike Ezell
 
Thanks

[ If they still look good, I'll fire two more five shot groups to make sure it holds together.

Other ways may certainly work, as well. -Al[/QUOTE]

Al:

Will keep your advice in mind.

Thx.

Jeffrey Tooker
 
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