Start at the minimum load and work up...

[takbok]

I use roughly 2% increments until I find a limit, then reduce the charge a bit and proceed with that.

 

[tackb]

i cross reference all my books and find the spiciest load for my combination of components then drop that a grain or so and have at it

 

[Laurie]

I'm looking at 308 loads using Barnes TTSX 130gr and Ramshot Wild Boar powder.

I'm assuming you're thinking of using Hodgdon/Ramshot's link to Wild Boar data and the Barnes 130gn TSXBT, ie 47.6 - 52.8gn (for 61,407 psi SAAMI). With half grain increments you end up loading/shooting 11 batches to get to 52.5gn, then a 12th for 52.8. Too many for me. In your shoes, I'd either use 4 x 1gn steps 47.5-50.5gn, then half grain from there. Or, load a single round only up to 50gn in half-grain steps to fire purely for a pressure signs check, and if all is still well 0.5 or 0.4gn multi-round from there to near max. If available, a chronograph is invaluable here as MVs are the best (really the only) pointer we have to what is happening inside the case pressure-wise until things go bad like hard bolt-lift on a fired case.

Note Ramshot's max is shown as generating high pressures (61,407 psi vs 62,000 SAAMI MAP), very little leeway, and the test rounds used the high-capacity Winchester case. For heavier Lapua and RWS brass (Starline too?), I'd lower the listed max by a full grain weight.

 

[Laurie]

i cross reference all my books and find the spiciest load for my combination of components then drop that a grain or so and have at it

Good advice normally, but not much use to the OP as there is only a single data source for Ramshot Wild Boar. He won't find this one in any reloading manual

 

[Motard]

I use Quick Load and Gordons to develop new loads from starts only on paper then usually start with e mid-mild load (purple numbers) and stop before reaching maximum charges. usually works fir me although both programs are very conservative.

 

[SimpleSimon]

I'm assuming you're thinking of using Hodgdon/Ramshot's link to Wild Boar data and the Barnes 130gn TSXBT, ie 47.6 - 52.8gn (for 61,407 psi SAAMI). With half grain increments you end up loading/shooting 11 batches to get to 52.5gn, then a 12th for 52.8. Too many for me. In your shoes, I'd either use 4 x 1gn steps 47.5-50.5gn, then half grain from there. Or, load a single round only up to 50gn in half-grain steps to fire purely for a pressure signs check, and if all is still well 0.5 or 0.4gn multi-round from there to near max. If available, a chronograph is invaluable here as MVs are the best (really the only) pointer we have to what is happening inside the case pressure-wise until things go bad like hard bolt-lift on a fired case.

Note Ramshot's max is shown as generating high pressures (61,407 psi vs 62,000 SAAMI MAP), very little leeway, and the test rounds used the high-capacity Winchester case. For heavier Lapua and RWS brass (Starline too?), I'd lower the listed max by a full grain weight.

Thanks, yes that's the data I'm going off. Your advice sounds sensible, like you I wasn't too keen on loading up quite so many batches so I'll probably set up with some single rounds and a borrowed chronograph initially...

 

[Sampo]

Ramshot Wild Boar.

https://www.xxlreloading.com/powders/ramshot-wild-boar

https://hodgdonpowderco.com/wp-content/uploads/2023/04/Wild_Boar_Data-1.pdf

Ramshot Reloading Data (probably same as the previous one)

MBR Sporting Ramshot reloading data

Ramshot reloading data 308 Winchester

m-b-r.co.uk