exactally correct. The minimum is usually an indication of proper operation and expansion of bullet (if applicable)90% of minimum may result in a squib, I wouldn't do it, the minimum is there for a reason.
In a semi-auto or revolver? If using a semi, you will probably need to change the recoil spring for proper operation.
I would go to the handbooks, select the minimum load for jacketed bullets of that weight and go from there.yes .40 S&W. looking for recipe for raniere plated 155 gr flat nose.
Look at the Accurate Reloading Data. They have loads for Rainier, Berry and Lead bullets in 155 grain. Ramshot Powders also has lead bullet loads for their powders. If all else fails, try to find someone with a copy of the Lyman Cast Bullet Handbook. It may have loads for the 40 S&W.I have a 155gr. raniere tmj bullet. raniere says to use leade cast recipes. I cant find any rcipes for this aprticular bullet in a published book. any advice short of getting different bullets.
From Berry's web site:We, at Rainier Ballistics, recommend using lead bullet load data when loading our bullets. There is no need for adjustment when using lead bullet load data. Our bullets are jacketed using an electroplating process and are softer than traditionally jacketed bullets; hence the recommendation to use lead bullet load data. If you only have access to traditionally jacketed load data, we recommend reducing maximum charge by 10%. A roll or taper crimp may be used with our bullets; do not over crimp.
As long as you use the starting load for jacketed bullets, I don't believe you'll have any problems.Plated bullets occupy a position between cast bullets and jacketed bullets. They are soft lead, but have a hard outer shell on them. When loading plated bullets we have found best results using low- to mid-range jacketed data in the load manual. You must use data for a bullet that has the same weight and profile as the one you are loading. Do not exceed mid-range loads. Do not use magnum loads.
I always start with minmum. Usually minimum is a mild load, and so I do not normally see any advantage to going below. In a few cases I have to see how low before the gun would not cycle. Otherwise I go with minimum or mid range.JerryM. Do you start at the minimum of those loads or below minimum. Thanks
I don't believe you'll find any powder manufacturer who will concede that detonation (as you describe it) exists or is even possible. I made the mistake once of making a comment about the possibility of detonation to Mike Daly (Hodgdon Powder Co.) and got a two hour lecture about how it wasn't possible and after listening to him, I believe him to be absolutely correct..................Shooting loads under the min recommended can not only lead to squib loads, but also detonation which is basically like setting off an explosion in your chamber. Normally the powder burns very fast, but not an explosion, from back to front. With a light load, the powder lays at the bottom of the case and the primer (may) ignites it all at the same time.