[ktmhans]

Well just loaded up some 405 laser casts and 42 grs of RL-7 in some ww brass. Now my STBL feels like I thought a 45-70 would. Those 300gr factory Winchester factory's felt like nothing compaired to these. I was going load up fifty of them but not sure now I'd want to shoot that many.

 

[Pard]

Thats my mild load. Try some Speer 400gr FP with 45gr R-7
Snap, crackle & pop 8)

 

[lever addict]

Those Laser Cast are good bullets, but they will lead your bore if you push them too fast.

 

[Bearcat 74]

How did they shoot? Get any leading?


I shoot the Rem 405 over 42grs RL7, just curious how the cast did.

 

[ktmhans]

How many rounds do have to shoot to get the barrel to lead up? Anyone have an idea of how fast these are moving. I have added the chrono yet. Going shooting now so I will load up some more. Ill let you know how they do.

 

[ktmhans]

Also when I crimped with the Lyman dies I had a hard time getting it to load out farther then 2.032". The book says to load out to 2.055" as I remember. I will say it loaded and ejected great.

 

[Rowdy]

How many rounds do have to shoot to get the barrel to lead up? Anyone have an idea of how fast these are moving. I have added the chrono yet. Going shooting now so I will load up some more. Ill let you know how they do.

ktmhans –

If this will be your first time shooting cast? You’ll need to remove all traces of copper fouling first, start with a clean barrel…If not, leading can be expected!!

Velocity – maybe 1400-1500fps…That will be at/or above the pressure limits of that bevel base bullet and lead some more, but will depend on the condition of your barrel.

Have fun shooting ;D

 

[Rowdy]

Also when I crimped with the Lyman dies I had a hard time getting it to load out farther then 2.032". The book says to load out to 2.055" as I remember. I will say it loaded and ejected great.

A typo on the 2.032" COL ??

Should be more like 2.5" COL

 

[ktmhans]

A typo on the 2.032" COL ??

Should be more like 2.5" COL

Yep your right. I did copper clean first.

 

[Rowdy]

Also when I crimped with the Lyman dies I had a hard time getting it to load out farther then 2.032". The book says to load out to 2.055" as I remember. I will say it loaded and ejected great.

The problem with using a COL of 2.32 vs one at 2.55" is there will be almost another 1/4" of bullet located inside the case - and that "will" increase pressure!

I'd be looking at getting that bullet seating issue worked out before increasing powder charge.

 

[ktmhans]

The problem with using a COL of 2.32 vs one at 2.55" is there will be almost another 1/4" of bullet located inside the case - and that "will" increase pressure!

I'd be looking at getting that bullet seating issue worked out before increasing powder charge.

No just about .023" I was pulling the numbers from memory before. Never a good idea. I never would have tried them back short.

 

[ktmhans]

So I shot 15 rnds off the 42 gr. And 3 of the 43gr. I loaded up. I don't think I have to over 42. Shoulder wasn't lovin the bench. Standing wasn't bad though. Accuracy was pretty good but hard to tell it was really the first time shooting it and I was adjusting sights, holding positions and just plain old having fun shooting it. Ill load up some more and drop it in a sled this time around.

As far as leading, I pulled the bolt out and ran the snake down it one pull and I don't see anything up the bore. No lack of sheen or dull areas. Can anyone describe what leading would look like.
I'm not sure how fast they were moving g but I think its safe to say that if I hit it right . Its goin down.