With a name like "PB", is this powder good for cast boolits?


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Fatelvis
April 1, 2010, 08:27 AM
I have never used this powder, but am curious if it works well with cast lead bullets, given its name. Any experience with it in 9mm or 38 spl.?

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Ed Harris
April 1, 2010, 10:22 AM
PB stands for Porous Base. Yes it's great for cast bullets, in rifles as well as in handguns.

In .38 Special 4.5 grs. with 158-grain SWC approximates standard pressure, not +P.

In cowboy rifles 5.0 grs. will give about 1050 f.p.s. with 158 lead. Do not exceed this in guns not rated for +P ammunition.

To approximate +P with 158 lead use 5.5 grs.

To approximate +P with 125-gr. jacketed use 6 grs.

In .45 ACP with 230 lead 6 grs. approximates hardball velocity.

In cast bullet rifle loads you can use Unique data and not get into any trouble. I use 13 grs. with 150-gr. FMJ bullets in the .303 British, .308 Win., 8mm Mauser and .30-'06 as a plinker.

Have not used it in 9mm, but Lyman probably lists some loads. I would not experiment much beyond published loads in a small case like the 9mm.

ranger335v
April 1, 2010, 01:47 PM
PB is a little slower than Bullseye, I use it in much the same way.

oldgold
April 2, 2010, 12:17 AM
I've used a lot of PB in shot shells. It seems to have a lower flame temp and is easier on hulls than say 700X. Also a lot of shotguners liked it because of lower felt recoil.

I have tried it in .38 and 9mm but never got good accuracy.

According to Hodgdon's burn rate chart PB is #17 where as Bullseye is #9.

john wall
April 2, 2010, 01:06 AM
As a commercial loader, I used one 8 lb keg bought by the senior partner for handgun loads. Although a good, if pricey, shotshell powder, it is not a stellar performer in most handgun loads.

I no longer use PB for commercial ammo. Low speed, high pressure in many cases.

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