Can you use 100gr 30 cal. half-jacket bullletsin anything besides the .30 carbine?

[Theobear]

Has anyone reloaded and shot 30 cal. 100 gr. half-jackets in anything other than the 30 carbine. I would like to use these in reduced velocity loads in a 30-06 1903 Springfield. Possible or problems ? Thanks!

 

[CJ6]

A mentor of mine was using them and the 110 gr. roundnose in his early 1st generation Ruger American with great results. I'm not sure of the exact load but he was using IMR 3031.

 

[TIMO]

I have used them when fire forming 30BR without any issues.
Tim

 

[426nut]

I've used them for plinking loads in my 30-30 over the years.

 

[Fuj]

Shot quite a few chucks with them in a 300 Savage. I was running an easy
low book 2600 fps with 748.

 

[Theobear]

Thanks to all that replied! Just what I needed to hear. I also have a30BR and will try them during fireformings. Great info!

 

[jds holler]

I used them in my old 30 carbine Blackhawk revolver for the most part. BUT -- I did load a bunch one time for my buddy to shoot in his 30-06 for rabbit and plinking loads. It's been 40 or 50 years, and I remember Red Dot powder, but the weight eludes me. I'm thinking 4 or 5 grains. jd

 

[Fire Dog]

I used them in my old 30 carbine Blackhawk revolver for the most part. BUT -- I did load a bunch one time for my buddy to shoot in his 30-06 for rabbit and plinking loads. It's been 40 or 50 years, and I remember Red Dot powder, but the weight eludes me. I'm thinking 4 or 5 grains. jd

Years back I put some through a 30-06 using H110… and even a case load of surplus 4831 though an awful lot of 4831 just went unburnt out the barrel but What the Heck !! it was 50 cents a pound…
Sierra 30 cal 110gr hollow points in an ‘06 with a max load of 4895 were absolutely explosive!

 

[Lynn Brase]

The Speer manual warns about using the pistol half jackets at reduced loads. The core leaving the jacket! Not sure if this is a problem with 30-06 or 30-30 with the 100 grain plinkers. I have used 125gr. with H4895 reduced loads. See the hogdon paper on reduced loads.

 

[JLT]

The Speer manual warns about using the pistol half jackets at reduced loads. The core leaving the jacket! Not sure if this is a problem with 30-06 or 30-30 with the 100 grain plinkers. I have used 125gr. with H4895 reduced loads. See the hogdon paper on reduced loads.

I have a hard time with this one. At what point in time do the inertial moments of the core and the jacket become sufficiently different to result in separation? They cannot accelerate at different rates with pressure behind the bullet mass.

 

[dellet]

I have a hard time with this one. At what point in time do the inertial moments of the core and the jacket become sufficiently different to result in separation? They cannot accelerate at different rates with pressure behind the bullet mass.

Depends on the chamber design, jump and starting pressure/speed along with how the jacket is attached to the core. Give the bullet enough of a start and sharp enough leading edge into the bore, it acts like an inertia puller and strips or loosens the jacket from the core. Half jackets have a pretty large step up, more or less a two diameter bullet, bore and groove. Doesn’t take much of a crimp on a half jacket to have the core pop loose using an inertia puller either.

Speer has had some interesting warnings over time including not shooting jacketed bullets in 38 special. Because of higher friction of the jacket, combined with the low pressure and velocity of the cartridge, the chance of sticking a bullet in the barrel was high.

It’s always amazing that when a bullet is used outside its design parameters and fails, it’s the bullets fault. When I was doing a lot of bullet field testing, part of my goal was to make bullets fail and give feedback to the manufacturer. Easiest example would be pushing bullets designed for subsonic use until they failed. No expansion at 950 fps, and the bullet pencils through gel. But at 2500 fps has very little penetration, only 2”, might as well have been shooting a steel plate.

 

[JLT]

Depends on the chamber design, jump and starting pressure/speed along with how the jacket is attached to the core. Give the bullet enough of a start and sharp enough leading edge into the bore, it acts like an inertia puller and strips or loosens the jacket from the core. Half jackets have a pretty large step up, more or less a two diameter bullet, bore and groove. Doesn’t take much of a crimp on a half jacket to have the core pop loose using an inertia puller either.

Speer has had some interesting warnings over time including not shooting jacketed bullets in 38 special. Because of higher friction of the jacket, combined with the low pressure and velocity of the cartridge, the chance of sticking a bullet in the barrel was high.

It’s always amazing that when a bullet is used outside its design parameters and fails, it’s the bullets fault. When I was doing a lot of bullet field testing, part of my goal was to make bullets fail and give feedback to the manufacturer. Easiest example would be pushing bullets designed for subsonic use until they failed. No expansion at 950 fps, and the bullet pencils through gel. But at 2500 fps has very little penetration, only 2”, might as well have been shooting a steel plate.

Thanks for that. You answered my question. I had not considered the transition from throat to bore.