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seagiant
12-06-2011, 11:35 AM
Hi,
I'm gathering everything I need to load this boolit for my MN,including a .315 sizer die from Lathesmith. I was doing some playing around with boolits and brass and looking at seating depth of the boolit and was wondering where you guys are seating this boolit to. I was wanting to get as close to the lands as possible but not have any exposed lube grooves.

By using dykem on the front of the boolit and then chambering,it seems I'm still a ways from the lands? any ideas? Thanks!

sqlbullet
12-06-2011, 11:54 AM
Given the generous throats these guns have, I would guess you aren't going to get very close to the lands unless you have a t least one lube groove exposed.

YMMV, only you can say for sure.

Larry Gibson
12-06-2011, 12:22 PM
I seat the similar parent bullet (314299) so the lube grooves are covered by the case neck and the GC does not extend below the case neck. That works very well in MNs. The Lovern design Lyman 323470 and 323471, sized down will reach the lands of most MNs. I only lube the grooves that are seated inside the case neck with those. Not any accuracy difference between the 3 bullets in MNs with regular cast bullet loads. MNs really don't have the accuracy capability to tell the difference in seating, especially if you are using the issue sights.

Just seat the bullets as mentioned and work the load from there.

Larry Gibson

seagiant
12-06-2011, 12:53 PM
Hi Larry,
Thanks for that I would prefer to not have lubed grooves exposed so that is good news! I kept playing around and finally saw what it would take to get on the lands and it is one groove exposed. I will seat as far out as I can without exposing a groove as you suggest and try that. I was thinking of going with about 25 grs. of IMR 4895 and seeing what different amounts of powder does on accuracy. Can you tell me what powder and amount is working for you??? Thanks again!

Maven
12-06-2011, 03:16 PM
seagiant, Ly. #314299, sized to .311" for my Finn. M 28/30 or to .312" for my M 39, needs to be seated to ~ 2.96" - 2.98" to be engraved by the rifling and still allow the lube grooves to be contained by the case neck. Your M 91/30, may have different preferences, though. Loads, which have proved accurate with that or similar CB are: 18.5gr. WC 820 (AA #9); 24gr. H/IMR 4198; 29gr. IMR 3031; 48gr. WC 860 wi. LR mag. primers; or 48gr. IMR 5010 also wi. LR mag. primer + 1.0cc spherical shot buffer or powdered bran.

seagiant
12-06-2011, 04:04 PM
Hi Maven,
Thanks for the info! I do not have the powders you listed but I have IMR-4895 which I believe is one of the best rifle powders made. I will try that first. I see you are using mostly real rifle powders instead of Bullseye,2400,ect. That is what I want to do as I want to be in the 2000 fps more or less!

My MN 91/30 is an "ex-sniper" and did not impress me with J-word bullets! I have cleaned the barrel till it shines and am hoping for better groups with the 316299. My barrel slugged at .313.5 and I am going to see how they work sized to .315

Larry Gibson
12-06-2011, 06:09 PM
Hi Larry,
Thanks for that I would prefer to not have lubed grooves exposed so that is good news! I kept playing around and finally saw what it would take to get on the lands and it is one groove exposed. I will seat as far out as I can without exposing a groove as you suggest and try that. I was thinking of going with about 25 grs. of IMR 4895 and seeing what different amounts of powder does on accuracy. Can you tell me what powder and amount is working for you??? Thanks again!

25 gr is the place to start with IMR 4895. Plus I suggest a 1/2 -3/4 gr dacron filler. I generally use 28 - 30 gr of 4895 depending on which flavor plus the dacron filler. From both my Finn M39 and my Russian M91/30 sniper w/PU scope that combination works very well with best accuracy for both coming in the 1850 - 1900 fps range.

Here's that load when I was zeroing the M39 for it. Last 10 shots were the 9 Xs and the 3 o'clock 10.

Larry Gibson

seagiant
12-06-2011, 06:30 PM
Hi,
Wow! If I can come close to that I will be REAL happy! Nice shooting! I have never used Dacron even though I think I have some. Thanks for the info very much,I feel I have all the info I need now!

odfairfaxsub
12-06-2011, 07:32 PM
i seat the bullet and check it and if the bolt doesnt close then i seat it a little more until it will cam close

Dutch4122
12-06-2011, 09:24 PM
Once you start to get some success with a particular load/powder and a boolit seated so that no lube grooves are exposed you might want to try a few rounds with the slug seated so that it does engrave when chambered. Just to see if accuracy improves.

IMR-7828 works well in the 7.62x54r in some of the long 91/30 barrels with the NOE 316299; and it is a case filler. Just use data for the 30-06 and IMR-7828 with a 200-210 grn jacketed bullet reduced by 10% for the starting and maximum loads.

Hope this helps,:mrgreen:

seagiant
12-07-2011, 09:41 AM
Hi Dutch,
Thanks for the info! Thats whats nice about this hobby is that it never ends there is always something else to try!I hope when I give this rifle a boolit it can actually grab it's going to start shooting some decent groups. The lands are not razor sharp but the bore is shiney and the muzzle crown is good!

Dutch4122
12-07-2011, 10:15 AM
I forgot to mention. Member "jumptrap" recommends 40 grains of IMR-7828 for a 1500-1600 fps load with the 314299. Might be worth looking into if you want a good plinking load. He claims if your rifle won't shoot this load you should sell it.

seagiant
12-07-2011, 09:26 PM
Hi,
Well,I might try a pound of that and see how I like it! I went to the range today to shoot my Swiss K31 with some J-word bullets,still waiting on my sizing die from Lathesmith for the NOE 316299 boolit!

Frank46
12-08-2011, 01:30 AM
I seat basically the same as Larry. grease grooves covered and gas check in the neck. With about 1/16" of the first driving band exposed. Hansen cases, winchester large rifle primer and 20 grs of 4759. I size to .3135 as the bose slugs out at .311, the rifle is a 1935 Finnish reworked
model 27. Has a cherry bore, swapped it for a lee enfield #4MKI. Frank

seagiant
12-08-2011, 10:18 AM
Hi,
Ok,What kind of group size are you guys getting running these boolits around 1800-2000 fps? Be advised,I'm not totally hung up on groups as these are very old and usually worn rifles but curious as what I should expect??? Thanks!

seagiant
12-14-2011, 03:48 PM
Hi,
Well I shot the MN with 25grs. of IMR-4895 with the poly in to keep the powder next to the primer. Was not impressed with the accuracy. Also shot low. I bought a pound of the 7828 and will try that. Oh yea no leading at all. I'd be happy with a 4"group if I can get it!

Larry Gibson
12-14-2011, 04:11 PM
314299 out of my Ishevsk(SP?) sniper and FinnM39 groups into 1.5 moa (10 shot groups) fairly consistently over 4895 with a dacron filler. Velocity range for best accuracy is 1850 - 1900 fps. Takes 28 - 30 gr of 4895 depending flavor and lot of 4895. Group is shown in photo in previous post.

Suggest you simply work up in 1 gr increments from you starting load of 25 gr. Typically a rear sight setting or 400 - 600 meters is necessary for poa=poi at 100 yards.

Larry Gibson

seagiant
12-14-2011, 10:14 PM
Hi Larry,
Thanks for the info,it would be nice to get to the sweet spot and see this rifle shoot well. One thing nice about this cast boolit shooting is that it is like shooting a squirrel rifle compared to the 7.62x54R milsurp ammo!