30-30: NOE 247 + 10 gr Unique in 336?

[Quiettime]

I have not found many people using the 247 gr NOE boolit in anything but the Blackout.

I did shoot some over 9 gr or Trail Boss (COL 2.55) for nice sub loads with no issues in the 336

Thinking for a little more velocity the 10 gr Unique load should be a good starting point, maybe around 1300 fps or so? Sound right?

Eventually hoping to get close to 1500 fps with the HP version for a nice hog/whitetail load.

TIA

[Moonie]

I use the Accurate Molds version of that boolit with GS in my 30-06 with 35gr of H4985 giving me 1,950fps. It is very accurate.

[RickinTN]

10.6 grains Unique in a 30-30 is about 36,000 cup with a 170 or so grain bullet. It produces velocities in the 1,500 or so fps range with said bullet. I'm thinking 10 grains under a bullet of 247 grains could be a serious overload. If I were going to use the Unique it would be at a charge far below the 10 grains.
I'm thinking for the velocities you are wanting a slower powder would be called for.
Rick

[JeffinNZ]

My concern is the average rifling pitch for a .30-30 may not stabilise the bullet at any achievable speed.

[DrCaveman]

That sounds like a mite high charge for that boolit
Maybe try varget or 4064 speed powder. I think your pressure will be pretty high using unique there, since seating depth is deep, and lyman says 9 grains with a smaller boolit is max
Of course, we all shoot hotter than that, but your proposal is more extreme

Ive had good results using h414 behind a 200 gr boolit in a 336, the load was compressed

[geargnasher]

I have shot the NOE 247 in a .30-30. A friend of mine and member here was kind enough to let me grab a handful out of his can for just such a purpose. I believe my comment at the time was something about building a ".30-30 Blackout" since he is constantly chiding me for not having a .300 BO AR-15 and not having any inclination to change that.

The starting point, and as it turned out, the finish point, is seven grains of Unique. I wanted a quiet, "hammer" load for my single shot Savage .30-30s. They both have a 1-turn-in-12" twist rate and will hit a soda can at a hundred yards every time, shooting to the same sight adjustment that I use with full-house 165-grain cast bullets. LOTS of fun. I don't know why they stabilize with that load, but they do. We already have an agreement to have a joint casting session this winter where I can lay in a good supply of these fun mortar balls.

That said, I don't know how one would use these in a Marlin, they won't feed and won't eject unfired without prying the extractor claw free of the rim and letting the case head fall back into the action and shaking it partway back into the chamber, then shaking it out the ejection port base first. Well, that is unless one seated the bullet more than halfway down into the case.

Gear

[geargnasher]

Oh, regarding 10 grains of Unique, I think that is WAYYYYY too much with that bullet weight.

Gear

[Quiettime]

Ok thanks guys. Will proceed with a little more caution

[bruce drake]

The heaviest I've ever shot with my Winchester 30-30 was 200gr and it was not nearly as accurate as my 150gr load. I'm more than comfortable shooting the lighter bullet in this rifle. If I need a heavier bullet than I have other rifles to shoot that 200gr bullet out of. Like JeffinNZ says, pick the bullet that best matches your rifle's twist rate.

[geargnasher]

I would agree, Major, but sometimes it's fun to try absurd things and much to my surprise, a 12-twist happened to stabilize that torpedo quite well in the sub-sonic range. Contrary to Greenhill for sure, but it worked nonetheless. I'll have to actually chrono those loads again when I get some more bullets and also spend some more quality time on paper with them. I thought it was neat that I wasn't the only one with the idea and wanted to encourage someone else to try the same concept with a slightly different bullet, only more cautiously than stacking ten grains under it to start. The Marlin's ten-twist may help as well. Still not sure about how it will work through the action, though, but with care they can be single loaded and extracted unfired from a Marlin.

Gear

[bruce drake]

That ten twist is lot different than my 1-12" twist Winchester 30-30. I'm glad your Marlin can shoot that heavy bullet. Marlin did a smart thing using that rate for their rifles. 120-240gr bullet range with that twist rate. My 200gr bullet (LEE sized .311 for the 30-06) is murderously accurate in my 1-10 03 Springfield-barreled T99 Arisaka.
Bruce

[Quiettime]

I do have the Lee 200 but no gas checks. I may PC some to try in the Marlin but I love the NOE and it makes a he'll of a smack on steel. Will post more as I experiment.

[Quiettime]

Update:

Started out with 8.5 gr Unique with the 247 PC @ 2.55" COL, 75*F. Velocity ran between 766 and 835 according to my ancient Chrony Beta. Ez eject, clean necks mild primer setback.

9.0 gr jumped from 863 to a high of 1443! It is possible that I mixed in some of the 9.5 gr loads but I was very careful not to do so. Also possible my chrony is screwing up or need a new battery...

9.5 gr ran from 1425 to 1453 fps. Ejection still very easy and primers look ok, no setback with this load but I did start to see some lead deposits on the outside of the mouths of the cases. A couple recovered slugs show some signs of gas cutting.

I think y'all are right, this isn't the best powder here. These boolits were also tumble coated and thickness may not have been the most consistent.

I did have a few dud primers. They are old and maybe not giving most consistent ignition. Back to the drawing board.

I do have some 4227 but no idea where to start. Any suggestions? I run 9.5 gr in .300 Blk but subsonic. May start there and work up. I also think 1300 May be as far as I want to go with this boolit.

[Quiettime]

Btw recoil was very mild with all loads

[geargnasher]

Unique will be quiet if you go for subsonic. See what I mean about the pressure? You're going to get backed-out primers from the firing pin strikes unless you o-ring the rims or lube the cases. If you want to go 1300 fps you might try 2400 and Dacron.

Gear

[Quiettime]

Yeah the pressure obviously is increasing exponentially.

I don't mind sub loads but I think <900 fps is leaving too much on the table.

BTW I also chronoed some Trail Boss loads and they ran between 950-975, which is not bad but with the COL you have to use there's no more room in the case, which I'm not crazy about, especially with what I've heard about compressing TB. You would really have to segregate your cases. I'd also rather see 1000-1025 ish in 75 degree temp. But it is a fun plinking load.

[geargnasher]

Look at 2400 powder and possibly large pistol primers if your firing pin can stretch out that far.

Gear