Lyman 287448

[Ben]

I bought this Lyman 287448 ( 7mm, 118 gr. RN g/c design ) here on the forum a few days ago. It looks to be a really nice mold. I'll be testing these in my Ruger Stainless Hawkeye , 7 X 57 mm in a few days. Anyone with any experience with this bullet. A Hornady 7 mm gas check fit is a nice " click snap " fit.

This one is pretty stingy with lead ( that's GOOD ! ). Might be just fine for paper punching ?

Thanks,
Ben


http://img.photobucket.com/albums/v494/haysb/018-3.jpg

http://img.photobucket.com/albums/v494/haysb/019-2.jpg

http://img.photobucket.com/albums/v494/haysb/015-1.jpg

These bullets are dropping nice and round at .287 ". I size to .2864 " in a Lee Nose 1st die
that I have honed out to .2864". Once the bullets are sized to .2864", next I
lube only ( no sizing ) in a .287" Lyman H & I die.

This arrangement seems to produce some very accurate bullets in several
( 6 or more ) 7 mm Mauser and .280 Rem rifles.

http://img.photobucket.com/albums/v494/haysb/016-1.jpg

http://img.photobucket.com/albums/v494/haysb/7%20X%2057%20Synthetic%20Stock/004800x600.jpg

[Le Loup Solitaire]

This is one of the older designs for the 7mm and it was a popular one. I too once had it as a single cavity and it shot very well for me in a 1910 RRB-that I unwisely traded away. I used 20 grains of IMR 3031. I never knew the MV (didn't have a cronograph back then) but it was very accurate at 100 yards. Didn't crimp it as it was all single shot work, Used a gas check (then made by Lyman) and it burned clean with no leading. LLS

[Ben]

LLS :

Thanks.....I've got a fresh can of IMR 3031. I'll give that load a try.

Ben

[Ben]

I shot the 448' today. I'm happy with it !

http://img.photobucket.com/albums/v494/haysb/Photo0070.jpg

[Pigslayer]

:mrgreen:Been shooting the Ruger Model 77 for 38 years. Fine rifle. I shoot it in .270 win & 7MM Rem. Mag. Shot a woodchuck paced off at 600 yrds with that .270 using a Sierra 150 gr. spitzer boattail, 54.4 grs. H4831 powder & CCI Large Rifle primer. Still use that load today. Fine rifles those Rugers.

[Pigslayer]

:mrgreen:Been shooting the Ruger Model 77 for 38 years. Fine rifle. I shoot it in .270 win & 7MM Rem. Mag. Shot a woodchuck paced off at 600 yrds with that .270 using a Sierra 150 gr. spitzer boattail, 54.4 grs. H4831 powder & CCI Large Rifle primer. Still use that load today. Fine rifles those Rugers.

[caseyboy]

Hi Ben,

I just also recently acquired that mould except in a plain base design. Haven't cast it yet, but I am hoping that it will become a good, accurate 100yd plinker round.

Mike

[Ben]

Mine seems to shoot it just fine.

Ben

[captaint]

I would say so, Ben. Nice work. Might have to try that boolit. I have a 7X57 and a .280... enjoy Mike

[Ben]

I've only had the mold a few days, so my range time with different OALs, different propellants, etc is very limited. Early trials seem to indicate that the bullet has a lot of potential in my particular rifle.

Ben

[MtGun44]

Ben,

How old is that rifle? I thought Ruger gave up on the 7x57 many years ago.

I hope that they are still selling some.

Bill

[Ben]

Bill :

I bought mine about 2 yrs. ago ( NIB ).

I have it , as you can see, in a laminated stock right now ( Glass bedded ) .

http://img.photobucket.com/albums/v494/haysb/7%20X%2057%20Synthetic%20Stock/004800x600.jpg

The rifle looked like this the day I bought it. I removed the stock immediately, so it will be easy to return the rifle to the RSI style should I choose to do that. The stock you see below is in the orig factory box and I'll hold on to all this so that I can easily switch back.

http://img.photobucket.com/albums/v494/haysb/Ruger%20RSi%207%20X%2057/0221024x768.jpg

[caseyboy]

I was, wrong, the mould I got is not the exact version of Ben's in plain base. I cast up a few with quenched range lead. Ran them through a Lee push thru sizer (0.2863") with WD-40 as the sizing lube. I like to do this soon after casting otherwise they harden up alot and become more difficult.

[Ben]

I take some wheel bearing grease and put a " dab " in the middle of a jar lid close to my Lee Bullet sizer.

I put a VERY tiny film of lube on about every 2nd or 3rd bullet. Seems to work just fine. My Lee Nose 1st sizer die internal dimensions hasn't changed at all over the past 15 yrs.

Ben