Custom 505 Build

[turbogrouse]

I’ve been building this rifle for the last year and a half, it’s quite unique and the first stock I built.

The rifle is chambered in 505 Gibbs, 24” Pac-Nor barrel SS blank machined and fitted by PR Precision, new lower zero MOA rail and forward recoil lug by PR Precision, Cerakote in sniper grey by EM Precision.

The Cadex magazine is for 7 rounds of 375 Cheytac, so I cut it down and modified it to fit 4 rounds of 505. Feeds very nicely.

Stock started as a Boyd’s laminate blank, I completed the inlet then shaped and fitted the stock, it’s based roughly off a Remington 700 stock. Have a Bushnell 1-6 scope on it that seems to be taking the recoil so far, undecided on the final scope.

Have ten rounds fired so far, forgot my chronograph so didn’t do any grouping but looks promising since it will hit 1.5” circles at 100yrds off bags.

 

[spike.t]

Mmm...no irons on a 505....... ....and a bipod.....what does it weigh?

 

[Certus]

I like it, certainly different! What action?

 

[turbogrouse]

I thought about irons but I rarely use them, I like 1x scopes. Right at 15# loaded, bi pod just for pictures.

Yes it is, Cadex CDX-40.

 

[Hunter-Habib]

Very unique looking

 

[PerH]

Good build , the Canadian action by the looks of it ?

 

[Certus]

I just noticed the fluting on the bolt matches up alright to the fluting on the barrel. Love the stock also.

 

[AZDAVE]

Different take on a 505. The craftsmanship looks very good. hope it shoots well. What are you planning on hunting with it?

 

[spike.t]

I thought about irons but I rarely use them, I like 1x scopes. Right at 15# loaded, bi pod just for pictures.

Yes it is, Cadex CDX-40.

15lbs ....bit heavy for me.... should be OK shooting prone with the bipod if you keep it on....

 

[Red Leg]

15lbs ....bit heavy for me.... should be OK shooting prone with the bipod if you keep it on....

Perhaps a small two-wheel gun carriage like the German's used for the Maxim?

That is a very unique take on a .505. Sounds like it will shoot.

 

[turbogrouse]

Good build , the Canadian action by the looks of it ?

Yes, they are out of Quebec

 

[turbogrouse]

Different take on a 505. The craftsmanship looks very good. hope it shoots well. What are you planning on hunting with it?

Thanks! So far it shoots great, mostly moose/elk and the odd gopher lol.

 

[turbogrouse]

15lbs ....bit heavy for me.... should be OK shooting prone with the bipod if you keep it on....

I was planning for 13, the stock came out of way heavier than I thought it would. Haha it’s not bad off the bench, my 458wm is way worse.

 

[turbogrouse]

Perhaps a small two-wheel gun carriage like the German's used for the Maxim?

View attachment 662602
That is a very unique take on a .505. Sounds like it will shoot.

Hahahaha.

 

[PerH]

Yes, they are out of Quebec

the same that make the new sniper rifle model Timberwolf if I’m not mistaken .

 

[turbogrouse]

I haven’t seen the new one they are using, would be cool if they used a Canadian company.

 

[PerH]

I haven’t seen the new one they are using, would be cool if they used a Canadian company.

Rifles - PGW Defence Technologies Inc.

pgwdti.com

 

[rookhawk]

I admire your efforts to build your own rifle @turbogrouse . Aesthetics are a personal preference and if you like your gun, don't let anyone tell you different. (e.g. me: it needs a $5000 slab of walnut to please me)

The one warning I will give you is that Boyd stocks are not up to the challenge of that rifle. They are junk out of the box. Birch/Beech plywood. I've built many rifles using them. Trust me, you'll crack that stock in two instantly. Repeat with me: the stock will not handle the recoil, the wood isn't strong enough.

Okay, if you accept my statement above, what must you do? You need glass bedding. Lots of acraglass. You need to create metal sleeves for all the bolt holes. You need to glass the magazine, trigger guard, action, recoil lug etc. Further than that, you need to inlet the barrel channel and put some all-thread rod in it, glassed in. Wherever you can glass and reinforce with carbon fiber or all thread, DO IT. Wherever you have exposed wood holes, you need to custom machine metal sleeves and glass bed so there is zero metal-to-wood contact on that stock.

All my statements above are based on puny guns in boyd's stocks: 20 gauge slug rifles that push about 50 pounds of felt recoil, 3" Turkey bolt action guns that put out 65lbs of recoil, etc. You're doubling the stress levels on a very weak stock design, do what I do but 10x more and better. You're trying to contain somewhere around 120lbs of felt recoil on nothing more than beech plywood that was designed to handle 30-06 levels of stress (26lbs of recoil). There is a reason Boyd's stocks are $150 and a typical Gibbs stock is $2500 not counting the wood. Its not impossible, but it needs tremendous attention to turn that stock into a piece of glass/metal/carbon fiber with simply a decorative wood shell.

P.S. - Make sure the rings and mounts are able to withstand the forces. They better be hard steel, no aluminum. At least two fasteners on each side of the ring, etc. Assume the optic's internals will last a few shots at the most. Check it for wobble frequently. An acquaintance gave himself a TBI and was never the same after using the wrong rings + a lead sled on a 416 Rigby CZ. You're in a different ballpark.