PREFECTION NOT WORKING

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  • Last Post 27 July 2010
CANADIAN BACON posted this 23 July 2010

Iam holding in my hand a bullet from my new LBT mold. If the Good Lord Himself made this bullet I doubt it would be more perfect. So why can't I get it to work in my ole .303. At the local  CBA shoot I shot my Ruger using an RCBS bullet that rattled around in the bore but still scored 48/50. I was using 20 grs 296 with the usual fixins. I try this load in my .303 and can't do better than 2” at 100. If Iam going to beat my American Cousins I have to come up with a better plan. I have tried 296, #7, 4198, 4831? Pretty much all the same results. Bullet is sized to .315, throat is the same. Alloy is W/W with the G/C being about .001 oversize. Wouldn't you know it. The last lot of G/C were oversize, so they fall right off the bullet unless you place them in the sizer first. Call me stubborn but I mean to get this rifle to shoot lead as good as it does jacket. It's my military cartridge and we used it up until 1955. Anyway there is not a lot of research on this caliber but I figure you/all may have some input.:D I missed all the mil. shot's this year due to the Form#6 problems but I got a call from the ATF lady and I may be good to go next year. So with a little help maybe I'll have this rifle ready by then:) THANKS 

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RicinYakima posted this 23 July 2010

Use the search feature in the threads on this forum. There are several from folks with a lot of 303 British experience, both US, NZ and Aus.

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tturner53 posted this 23 July 2010

2” groups is pretty good from some ol' .303s. What are you shooting? Issue sights? Jeff in NZ wrote an extensive article on accuracy of SMLEs, he thought 2” was an exceptional gun.

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Vassal posted this 23 July 2010

I don't know if you should, or should not, expect better accuracy,,,and I don't (yet.>) have experience with 303 British,,,BUT I do know some about LBT bullets at .315 . I was having pretty poor results in Big Russian rifles that I knew would do better UNTILL I figured out the proper OAL for the LBT's nose. For me that meant seating much longer than I believed was right. Meaning - there is “on the lands” and then there is  “into the lands"  My solution was “into the lands” about .03” .  I don't know what is safe or best for your gun, but you may try setting the bullet into the lands a little more than normal.

My experience is with a Sp.8 LBT nose (the smallest meplat available)

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CANADIAN BACON posted this 24 July 2010

Thanks for the reply's. I did the search's but would like to here from shooters that are local. Those that use the LBT system are extra helpfull. I will try some into the lands procedures and am curious as to how one would go about seating the bullet into the lands. I use an oversize expander plug with the idea of the bullet sliding back as soon as it reaches the first driving band. I'll go back to square one and tighten up the neck a little and seat em long. I have the LBT SP/8 design and the ogive is the same as the FMJ that this gun shoots well. I tried sparking it up with 45 gr of 4831 but the faster velocity didn't make a lot of difference. Anyway I know the bullet is right so there is one less thing I have to consider. Thanks Again:dude:   

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RicinYakima posted this 24 July 2010

CANADIAN BACON wrote:  I use an oversize expander plug with the idea of the bullet sliding back as soon as it reaches the first driving band.

Lots of us have tried that approach, but I don't know of anyone who still uses it. There is isn't any consistency for seating depth doing that.

Try expanding only down to where the bottom of the bullet would be for that over all length. The sized neck below the depth that was expanded will force the bullet onto the lands.

HTH, ric

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Vassal posted this 24 July 2010

I use a Lyman M-die with 31 cal expander. sometimes I use a crimp just enough to striaghten the mouth back out (the m-die has two dimensions of expansion.)

It may be the same problem I was having. I loaded them to touch the lands and could not get ANY accuracy; after I loaded “into” the lands accuracy came. Now I just need to do the work neccesary for refining the load - but I keep getting distracted with other projects. I'd better hurry if I want to go to th regionals in KC.:thumbsup:

I also noticed that after I set them into the lands the SD's went WAY WAY down.

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CANADIAN BACON posted this 25 July 2010

THANKS GUYS Thanks for the tips and the good info. I have started over and my rifle and dies are all layed out on the bench. I use military brass and was wondering if any of you/all use this type of brass. Can a shooter pick up a few fractions using commercial?? Iam also told Fed 210 primers are more consistent than the WLR that Iam using. Anyway I hear what you/all are saying and will proceed accordingly. :dude: 

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Vassal posted this 25 July 2010

I usually use Fed match, BUT, I just got back from posting the best group I have EVER shot by using WINCHESTER LR. I did not try this exact load with Fed BUT I think it is safe to assume that Win's will be pretty good for starting with,,,. Maybe not:cusout:.

LBT 315-175-sp.8 @ 1745fps. in '67 Sako m39. (AA5744)

I use Serbian brass - PPU/NNY = Prvi Partisan. I do alot of prep but did not weight sort this bunch. I have never used better brass, but I will probably buy some Lapua soon - just to find out about those extra points you mentioned.

If I was a betting man I would bet on you shooting some better groups with a longer OAL,,,. Then again, maybe not:shock:

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CANADIAN BACON posted this 26 July 2010

Vassal wrote: I usually use Fed match, BUT, I just got back from posting the best group I have EVER shot by using WINCHESTER LR. I did not try this exact load with Fed BUT I think it is safe to assume that Win's will be pretty good for starting with,,,. Maybe not:cusout:.

LBT 315-175-sp.8 @ 1745fps. in '67 Sako m39. (AA5744)

I use Serbian brass - PPU/NNY = Prvi Partisan. I do alot of prep but did not weight sort this bunch. I have never used better brass, but I will probably buy some Lapua soon - just to find out about those extra points you mentioned.

If I was a betting man I would bet on you shooting some better groups with a longer OAL,,,. Then again, maybe not:shock:

HOWDY VASSAL 5744 is a powder I have not used yet but it is at the top of the list, for things to do. My LBT mold is the 195 version as I want to shoot 300 plus meters. LBT suggested the bullet you use but I wanted a heavier/longer profile. It's probably going to be a trade off, long range-short range. To bad you live so far south of the Medicine Line, we could trade bullets and try em:) I also need new scopes. Iam going to start a new thread with fireguard to that subject. This is my first year back after about a 12 year layoff. Business and other interest's got in the way a few years back. Those were the days when I could cross the border with out so much as a second look. Anyway politics being what they are I won't go into it. So far my rifle shoots jacket into 1.5 at 100. I may be having an inside issue with my throat Dia. You know a 1” peg in a 1” hole. I'll keep ya posted:D  

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CANADIAN BACON posted this 27 July 2010

HOWDY I figured I should come back and mention that I have gotten my .303 under 2"@100. Thanks to you/all and your good advise.:) Into the lands is the way to go with this rifle and my system of using an oversize expander plug does not cut it, with this rifle. I knew my idea was to simple:D

Thanks Again:dude:

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