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twc1964
12-27-2015, 04:30 PM
Well fellas, i have been preparing to load my first cast rounds of 30/30 for my marlin. I was making a dummy round using a sized and trimmed case and a lee .309-170f boolit that pc'd and sized to .310.5. I flared case neck and seated a boolit slowly and kept dropping into rifle chamber to see where i was on depth when boolit cleard the rifling. Well, now im at the top crimp groove and the case is a quarter inch from going fully into chamber. I pushed lightly with my thumb and got a groove on the nose of boolit. I cant seat deeper as there will be no crimp groove. Whats to be done here? Not sure on this one. This is my first attempt at any loading for any rifly except 223 using j words. Thx for any replies.

TCFAN
12-27-2015, 05:23 PM
I have run into the same problem with my 2 marlins and one Winchester 30-30's.I used the Lee Factory crimp die so I could crimp where ever I needed too.
On some of my Encore barrels if the boolit is to long and the gas check ends up below the neck I will resize the nose to enable me to move the boolit out enough to keep the gas check in the neck of the case. On my 30-06 barrel using the NOE 311311 I had to size the nose to .299. It cast at .303................Terry

Fishman
12-27-2015, 09:47 PM
The pc is making the nose too fat. If you don't own a lubrisizer, just tumble lube with lee alox or you could try some of the new improved versions such as recluse 45-45-10 or Bens liquid lube and apply the gas check with your lee sizer.

Pc is heavily marketed by a few on here and they tend to gloss over some of the issues that can occur. Increasing the diameter of bore riding rifle bullets can cause real problems in modern rifles with tight chambers. Where it works, it is a nice option.

Fishman
12-27-2015, 09:47 PM
Duplicate post

twc1964
12-27-2015, 10:00 PM
Well, i do know about that problem as i do it to all my pistol calibers. But the ring on the end of the boolit, and judging by it, id have to have 4-5 thousandths of pc on it. They were .310-311 before pc and .310.5 after pc and sizing. Im gonna put an uncoated one in and see but im betting it still wont chamber. We shall see,

twc1964
12-28-2015, 07:40 PM
Well, i sized an uncoated boolit and seated into tha case. Put it into chamber and still have a quarter inch of case hanging out of chamber. I pushed it in with my finger and allowed extractor to pull it out and had rifling marks on The first 1/4" of the nose. Even if i swat it deep enuff to chamber, the gas check will be way below neck of case. I dont know what i should do now. Even sizing down the nose wont work as the rifling marks are too far down side of boolit. Any suggestions?

45-70 Chevroner
12-28-2015, 08:07 PM
What is pc'd?, I'm sure I know but don't recognize the abbreviation.

twc1964
12-28-2015, 08:29 PM
By pc i mean powdercoated.

clum553946
12-29-2015, 04:24 AM
Get lighter a weight bullet mold

rond
12-29-2015, 10:03 AM
I trim my cases shorter for my Marlins.

twc1964
12-29-2015, 11:21 AM
Rond, how much shorter do you trim your cases? I never really thought of that to tell you the truth. Id like to use the boolits i have on hand if possible. Thx

45-70 Chevroner
12-29-2015, 03:34 PM
By pc i mean powdercoated.

You might try sizing just the front portion of the boolit. If you have a 308 or 309 sizing die just run the boolit nose first into the die just far enough to size it down that it will chamber. I have done this with a 8mm boolit so I could shoot it in a 32 special.

twc1964
12-29-2015, 09:06 PM
Well, i dont have any smaller sozing dies on hand but a member here offered to send me a few of the accurate #31-175 b boolit. It has a conical tapered nose section that just might work. Wow guys, pistols are a lot easier to get to work than rifles, at least it seems so to me. I have a lot more experience with pistolas anyway. For me rifles were always something id drag out of the cabinet just to go deer hunting. This is totally foreign but a challenge.

OverMax
12-29-2015, 11:27 PM
I suggest the Minimum measurements to use,

Brass length after its Full length resizing: Trim to (Min) Length: 2.020__Max 2.040

Cartridge: Over All Length with its (FP) bullet seated: (Min) Length: 2.450__Max 2.550


The above measurements were used in the reloading of cartridges used in a Model 336 Marlin. Per Accurate Powders~ Hand Reloaders Manual ~ Fifth Edition.

twc1964
12-29-2015, 11:53 PM
Overmax, i will try a case trimmed to that length. Ive got a few ranchdog 165's on the way to try out also. Those have a bit more taper to the nose section. May help a bit im hoping. Thx all for the suggestions.

Fishman
01-01-2016, 05:07 AM
Check diameter of the nose. That design should be casting .301 or less but lead flecks on the mold block faces or improperly closed blocks could cause the bullets to be fatter. If so, the band's will be sized and uniformed by your sizer but not the nose.

It could also be an improperly applied crimp (too much or too little).

44man
01-05-2016, 09:47 AM
I have one boolit like that. I lapped a .284" lee size die to .301" and just size the nose. The rest of my boolit is .311".

shoot-n-lead
01-05-2016, 10:20 AM
The pc is making the nose too fat. If you don't own a lubrisizer, just tumble lube with lee alox or you could try some of the new improved versions such as recluse 45-45-10 or Bens liquid lube and apply the gas check with your lee sizer.

Pc is heavily marketed by a few on here and they tend to gloss over some of the issues that can occur. Increasing the diameter of bore riding rifle bullets can cause real problems in modern rifles with tight chambers. Where it works, it is a nice option.

NO way that pc is his issue as he has described it...

Dan Cash
01-05-2016, 10:33 AM
Bullet nose is toofat. Condition is exacerbated by the PC. Get a chamber cast (pound cast or other) and get a mould cut to fit.

Wayne Smith
01-05-2016, 05:51 PM
Just load them and shoot them. If the boolit doesn't pull out when you unload a loaded chamber you are good to go. My boolit engraves hard enough that I have to work to close the lever (Marlin 336) but shoots balls a fire so I don't change it.

rond
01-07-2016, 11:40 AM
Rond, how much shorter do you trim your cases? I never really thought of that to tell you the truth. Id like to use the boolits i have on hand if possible. Thx

I trim so the case crimps in the crimp groove of the boolit and still chambers. Work up the load again.